diff --git a/src/asynk.rs b/src/asynk.rs
index b63cf51..a75dd03 100644
--- a/src/asynk.rs
+++ b/src/asynk.rs
@@ -5,6 +5,5 @@ pub mod async_worker_pool;
 
 pub use async_queue::*;
 pub use async_runnable::AsyncRunnable;
-pub use async_runnable::Error as AsyncError;
 pub use async_worker::*;
 pub use async_worker_pool::*;
diff --git a/src/asynk/async_queue.rs b/src/asynk/async_queue.rs
index 98508b1..35faebe 100644
--- a/src/asynk/async_queue.rs
+++ b/src/asynk/async_queue.rs
@@ -1,5 +1,4 @@
 use crate::asynk::async_runnable::AsyncRunnable;
-use crate::asynk::async_runnable::Error as FangError;
 use crate::CronError;
 use crate::Scheduled::*;
 use async_trait::async_trait;
@@ -103,15 +102,6 @@ impl From<cron::error::Error> for AsyncQueueError {
     }
 }
 
-impl From<AsyncQueueError> for FangError {
-    fn from(error: AsyncQueueError) -> Self {
-        let message = format!("{:?}", error);
-        FangError {
-            description: message,
-        }
-    }
-}
-
 #[async_trait]
 pub trait AsyncQueueable: Send {
     async fn fetch_and_touch_task(
@@ -708,8 +698,8 @@ mod async_queue_tests {
     use super::AsyncQueueable;
     use super::FangTaskState;
     use super::Task;
-    use crate::asynk::AsyncError as Error;
     use crate::asynk::AsyncRunnable;
+    use crate::FangError;
     use crate::Scheduled;
     use async_trait::async_trait;
     use bb8_postgres::bb8::Pool;
@@ -729,7 +719,7 @@ mod async_queue_tests {
     #[typetag::serde]
     #[async_trait]
     impl AsyncRunnable for AsyncTask {
-        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), Error> {
+        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), FangError> {
             Ok(())
         }
     }
@@ -743,7 +733,7 @@ mod async_queue_tests {
     #[typetag::serde]
     #[async_trait]
     impl AsyncRunnable for AsyncTaskSchedule {
-        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), Error> {
+        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), FangError> {
             Ok(())
         }
 
diff --git a/src/asynk/async_runnable.rs b/src/asynk/async_runnable.rs
index 752329d..49b0122 100644
--- a/src/asynk/async_runnable.rs
+++ b/src/asynk/async_runnable.rs
@@ -1,18 +1,45 @@
+use crate::async_queue::AsyncQueueError;
 use crate::asynk::async_queue::AsyncQueueable;
+use crate::FangError;
 use crate::Scheduled;
 use async_trait::async_trait;
+use bb8_postgres::bb8::RunError;
+use bb8_postgres::tokio_postgres::Error as TokioPostgresError;
+use serde_json::Error as SerdeError;
 
 const COMMON_TYPE: &str = "common";
 
-#[derive(Debug)]
-pub struct Error {
-    pub description: String,
+impl From<AsyncQueueError> for FangError {
+    fn from(error: AsyncQueueError) -> Self {
+        let message = format!("{:?}", error);
+        FangError {
+            description: message,
+        }
+    }
+}
+
+impl From<TokioPostgresError> for FangError {
+    fn from(error: TokioPostgresError) -> Self {
+        Self::from(AsyncQueueError::PgError(error))
+    }
+}
+
+impl From<RunError<TokioPostgresError>> for FangError {
+    fn from(error: RunError<TokioPostgresError>) -> Self {
+        Self::from(AsyncQueueError::PoolError(error))
+    }
+}
+
+impl From<SerdeError> for FangError {
+    fn from(error: SerdeError) -> Self {
+        Self::from(AsyncQueueError::SerdeError(error))
+    }
 }
 
 #[typetag::serde(tag = "type")]
 #[async_trait]
 pub trait AsyncRunnable: Send + Sync {
-    async fn run(&self, client: &mut dyn AsyncQueueable) -> Result<(), Error>;
+    async fn run(&self, client: &mut dyn AsyncQueueable) -> Result<(), FangError>;
 
     fn task_type(&self) -> String {
         COMMON_TYPE.to_string()
diff --git a/src/asynk/async_worker.rs b/src/asynk/async_worker.rs
index f63057f..6dbd7e8 100644
--- a/src/asynk/async_worker.rs
+++ b/src/asynk/async_worker.rs
@@ -3,7 +3,7 @@ use crate::asynk::async_queue::FangTaskState;
 use crate::asynk::async_queue::Task;
 use crate::asynk::async_queue::DEFAULT_TASK_TYPE;
 use crate::asynk::async_runnable::AsyncRunnable;
-use crate::asynk::AsyncError as Error;
+use crate::FangError;
 use crate::Scheduled::*;
 use crate::{RetentionMode, SleepParams};
 use log::error;
@@ -32,7 +32,7 @@ where
         &mut self,
         task: Task,
         actual_task: Box<dyn AsyncRunnable>,
-    ) -> Result<(), Error> {
+    ) -> Result<(), FangError> {
         let result = self.execute_task(task, actual_task).await;
         self.finalize_task(result).await
     }
@@ -49,7 +49,10 @@ where
         }
     }
 
-    async fn finalize_task(&mut self, result: Result<Task, (Task, String)>) -> Result<(), Error> {
+    async fn finalize_task(
+        &mut self,
+        result: Result<Task, (Task, String)>,
+    ) -> Result<(), FangError> {
         match self.retention_mode {
             RetentionMode::KeepAll => match result {
                 Ok(task) => {
@@ -92,7 +95,7 @@ where
         tokio::time::sleep(self.sleep_params.sleep_period).await;
     }
 
-    pub async fn run_tasks(&mut self) -> Result<(), Error> {
+    pub async fn run_tasks(&mut self) -> Result<(), FangError> {
         loop {
             //fetch task
             match self
@@ -146,7 +149,7 @@ impl<'a> AsyncWorkerTest<'a> {
         &mut self,
         task: Task,
         actual_task: Box<dyn AsyncRunnable>,
-    ) -> Result<(), Error> {
+    ) -> Result<(), FangError> {
         let result = self.execute_task(task, actual_task).await;
         self.finalize_task(result).await
     }
@@ -163,7 +166,10 @@ impl<'a> AsyncWorkerTest<'a> {
         }
     }
 
-    async fn finalize_task(&mut self, result: Result<Task, (Task, String)>) -> Result<(), Error> {
+    async fn finalize_task(
+        &mut self,
+        result: Result<Task, (Task, String)>,
+    ) -> Result<(), FangError> {
         match self.retention_mode {
             RetentionMode::KeepAll => match result {
                 Ok(task) => {
@@ -206,7 +212,7 @@ impl<'a> AsyncWorkerTest<'a> {
         tokio::time::sleep(self.sleep_params.sleep_period).await;
     }
 
-    pub async fn run_tasks_until_none(&mut self) -> Result<(), Error> {
+    pub async fn run_tasks_until_none(&mut self) -> Result<(), FangError> {
         loop {
             match self
                 .queue
@@ -246,8 +252,8 @@ mod async_worker_tests {
     use crate::asynk::async_queue::AsyncQueueable;
     use crate::asynk::async_queue::FangTaskState;
     use crate::asynk::async_worker::Task;
-    use crate::asynk::AsyncError as Error;
     use crate::asynk::AsyncRunnable;
+    use crate::FangError;
     use crate::RetentionMode;
     use crate::Scheduled;
     use async_trait::async_trait;
@@ -266,7 +272,7 @@ mod async_worker_tests {
     #[typetag::serde]
     #[async_trait]
     impl AsyncRunnable for WorkerAsyncTask {
-        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), Error> {
+        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), FangError> {
             Ok(())
         }
     }
@@ -279,7 +285,7 @@ mod async_worker_tests {
     #[typetag::serde]
     #[async_trait]
     impl AsyncRunnable for WorkerAsyncTaskSchedule {
-        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), Error> {
+        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), FangError> {
             Ok(())
         }
         fn cron(&self) -> Option<Scheduled> {
@@ -295,10 +301,10 @@ mod async_worker_tests {
     #[typetag::serde]
     #[async_trait]
     impl AsyncRunnable for AsyncFailedTask {
-        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), Error> {
+        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), FangError> {
             let message = format!("number {} is wrong :(", self.number);
 
-            Err(Error {
+            Err(FangError {
                 description: message,
             })
         }
@@ -310,7 +316,7 @@ mod async_worker_tests {
     #[typetag::serde]
     #[async_trait]
     impl AsyncRunnable for AsyncTaskType1 {
-        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), Error> {
+        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), FangError> {
             Ok(())
         }
 
@@ -325,7 +331,7 @@ mod async_worker_tests {
     #[typetag::serde]
     #[async_trait]
     impl AsyncRunnable for AsyncTaskType2 {
-        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), Error> {
+        async fn run(&self, _queueable: &mut dyn AsyncQueueable) -> Result<(), FangError> {
             Ok(())
         }
 
diff --git a/src/asynk/async_worker_pool.rs b/src/asynk/async_worker_pool.rs
index 57796c4..6a2e000 100644
--- a/src/asynk/async_worker_pool.rs
+++ b/src/asynk/async_worker_pool.rs
@@ -1,7 +1,7 @@
 use crate::asynk::async_queue::AsyncQueueable;
 use crate::asynk::async_queue::DEFAULT_TASK_TYPE;
 use crate::asynk::async_worker::AsyncWorker;
-use crate::asynk::AsyncError as Error;
+use crate::FangError;
 use crate::{RetentionMode, SleepParams};
 use async_recursion::async_recursion;
 use log::error;
@@ -61,7 +61,7 @@ where
         sleep_params: SleepParams,
         retention_mode: RetentionMode,
         task_type: String,
-    ) -> JoinHandle<Result<(), Error>> {
+    ) -> JoinHandle<Result<(), FangError>> {
         tokio::spawn(async move {
             Self::run_worker(queue, sleep_params, retention_mode, task_type).await
         })
@@ -71,7 +71,7 @@ where
         sleep_params: SleepParams,
         retention_mode: RetentionMode,
         task_type: String,
-    ) -> Result<(), Error> {
+    ) -> Result<(), FangError> {
         let mut worker: AsyncWorker<AQueue> = AsyncWorker::builder()
             .queue(queue)
             .sleep_params(sleep_params)
diff --git a/src/blocking.rs b/src/blocking.rs
index 80cf811..7f4f296 100644
--- a/src/blocking.rs
+++ b/src/blocking.rs
@@ -5,7 +5,6 @@ pub mod schema;
 pub mod worker;
 pub mod worker_pool;
 
-pub use error::FangError;
 pub use queue::*;
 pub use runnable::Runnable;
 pub use schema::*;
diff --git a/src/blocking/error.rs b/src/blocking/error.rs
index f7da9bc..a5205fb 100644
--- a/src/blocking/error.rs
+++ b/src/blocking/error.rs
@@ -1,23 +1,31 @@
 use crate::blocking::queue::QueueError;
+use crate::FangError;
+use diesel::r2d2::PoolError;
+use diesel::result::Error as DieselError;
 use std::io::Error as IoError;
-use std::sync::PoisonError;
-use thiserror::Error;
 
-#[derive(Error, Debug)]
-pub enum FangError {
-    #[error("The shared state in an executor thread became poisoned")]
-    PoisonedLock,
-    #[error(transparent)]
-    QueueError(#[from] QueueError),
-    #[error("Failed to create executor thread")]
-    ExecutorThreadCreationFailed {
-        #[from]
-        source: IoError,
-    },
-}
-
-impl<T> From<PoisonError<T>> for FangError {
-    fn from(_: PoisonError<T>) -> Self {
-        Self::PoisonedLock
+impl From<IoError> for FangError {
+    fn from(error: IoError) -> Self {
+        let description = format!("{:?}", error);
+        FangError { description }
+    }
+}
+
+impl From<QueueError> for FangError {
+    fn from(error: QueueError) -> Self {
+        let description = format!("{:?}", error);
+        FangError { description }
+    }
+}
+
+impl From<DieselError> for FangError {
+    fn from(error: DieselError) -> Self {
+        Self::from(QueueError::DieselError(error))
+    }
+}
+
+impl From<PoolError> for FangError {
+    fn from(error: PoolError) -> Self {
+        Self::from(QueueError::PoolError(error))
     }
 }
diff --git a/src/blocking/queue.rs b/src/blocking/queue.rs
index 249d4dd..1b5a81f 100644
--- a/src/blocking/queue.rs
+++ b/src/blocking/queue.rs
@@ -369,7 +369,7 @@ mod queue_tests {
     use crate::runnable::COMMON_TYPE;
     use crate::schema::FangTaskState;
     use crate::typetag;
-    use crate::worker::Error as WorkerError;
+    use crate::FangError;
     use chrono::Utc;
     use diesel::connection::Connection;
     use diesel::result::Error;
@@ -382,7 +382,7 @@ mod queue_tests {
 
     #[typetag::serde]
     impl Runnable for PepeTask {
-        fn run(&self, _queue: &dyn Queueable) -> Result<(), WorkerError> {
+        fn run(&self, _queue: &dyn Queueable) -> Result<(), FangError> {
             println!("the number is {}", self.number);
 
             Ok(())
@@ -399,7 +399,7 @@ mod queue_tests {
 
     #[typetag::serde]
     impl Runnable for AyratTask {
-        fn run(&self, _queue: &dyn Queueable) -> Result<(), WorkerError> {
+        fn run(&self, _queue: &dyn Queueable) -> Result<(), FangError> {
             println!("the number is {}", self.number);
 
             Ok(())
diff --git a/src/blocking/runnable.rs b/src/blocking/runnable.rs
index 1d787cb..0ddad54 100644
--- a/src/blocking/runnable.rs
+++ b/src/blocking/runnable.rs
@@ -1,12 +1,12 @@
 use crate::queue::Queueable;
-use crate::Error;
+use crate::FangError;
 use crate::Scheduled;
 
 pub const COMMON_TYPE: &str = "common";
 
 #[typetag::serde(tag = "type")]
 pub trait Runnable {
-    fn run(&self, _queueable: &dyn Queueable) -> Result<(), Error>;
+    fn run(&self, _queueable: &dyn Queueable) -> Result<(), FangError>;
 
     fn task_type(&self) -> String {
         COMMON_TYPE.to_string()
diff --git a/src/blocking/worker.rs b/src/blocking/worker.rs
index 67f7255..bae864d 100644
--- a/src/blocking/worker.rs
+++ b/src/blocking/worker.rs
@@ -1,9 +1,9 @@
-use crate::error::FangError;
 use crate::queue::Queueable;
 use crate::queue::Task;
 use crate::runnable::Runnable;
 use crate::runnable::COMMON_TYPE;
 use crate::schema::FangTaskState;
+use crate::FangError;
 use crate::Scheduled::*;
 use crate::{RetentionMode, SleepParams};
 use log::error;
@@ -25,11 +25,6 @@ where
     pub retention_mode: RetentionMode,
 }
 
-#[derive(Debug)]
-pub struct Error {
-    pub description: String,
-}
-
 impl<BQueue> Worker<BQueue>
 where
     BQueue: Queueable + Clone + Sync + Send + 'static,
@@ -148,7 +143,6 @@ where
 
 #[cfg(test)]
 mod worker_tests {
-    use super::Error;
     use super::RetentionMode;
     use super::Runnable;
     use super::Worker;
@@ -156,6 +150,7 @@ mod worker_tests {
     use crate::queue::Queueable;
     use crate::schema::FangTaskState;
     use crate::typetag;
+    use crate::FangError;
     use chrono::Utc;
     use serde::{Deserialize, Serialize};
 
@@ -166,7 +161,7 @@ mod worker_tests {
 
     #[typetag::serde]
     impl Runnable for WorkerTaskTest {
-        fn run(&self, _queue: &dyn Queueable) -> Result<(), Error> {
+        fn run(&self, _queue: &dyn Queueable) -> Result<(), FangError> {
             println!("the number is {}", self.number);
 
             Ok(())
@@ -184,10 +179,10 @@ mod worker_tests {
 
     #[typetag::serde]
     impl Runnable for FailedTask {
-        fn run(&self, _queue: &dyn Queueable) -> Result<(), Error> {
+        fn run(&self, _queue: &dyn Queueable) -> Result<(), FangError> {
             let message = format!("the number is {}", self.number);
 
-            Err(Error {
+            Err(FangError {
                 description: message,
             })
         }
@@ -202,7 +197,7 @@ mod worker_tests {
 
     #[typetag::serde]
     impl Runnable for TaskType1 {
-        fn run(&self, _queue: &dyn Queueable) -> Result<(), Error> {
+        fn run(&self, _queue: &dyn Queueable) -> Result<(), FangError> {
             Ok(())
         }
 
@@ -216,7 +211,7 @@ mod worker_tests {
 
     #[typetag::serde]
     impl Runnable for TaskType2 {
-        fn run(&self, _queue: &dyn Queueable) -> Result<(), Error> {
+        fn run(&self, _queue: &dyn Queueable) -> Result<(), FangError> {
             Ok(())
         }
 
diff --git a/src/blocking/worker_pool.rs b/src/blocking/worker_pool.rs
index 1bfada8..d445535 100644
--- a/src/blocking/worker_pool.rs
+++ b/src/blocking/worker_pool.rs
@@ -1,6 +1,6 @@
-use crate::error::FangError;
 use crate::queue::Queueable;
 use crate::worker::Worker;
+use crate::FangError;
 use crate::RetentionMode;
 use crate::SleepParams;
 use log::error;
diff --git a/src/lib.rs b/src/lib.rs
index fe0f7c1..47d3f27 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -62,6 +62,11 @@ impl Default for SleepParams {
     }
 }
 
+#[derive(Debug)]
+pub struct FangError {
+    pub description: String,
+}
+
 #[macro_use]
 #[cfg(feature = "blocking")]
 extern crate diesel;