diff --git a/pallets/project-tips/src/extras.rs b/pallets/project-tips/src/extras.rs
index 2fc5193..1c85fbe 100644
--- a/pallets/project-tips/src/extras.rs
+++ b/pallets/project-tips/src/extras.rs
@@ -54,7 +54,7 @@ impl<T: Config> Pallet<T> {
 		let block_number_option = <ValidationProjectBlock<T>>::get(project_id);
 		let block_number = match block_number_option {
 			Some(block_number) => block_number,
-			None => Err(Error::<T>::ProjectIdStakingPeriodAlreadySet)?,
+			None => Err(Error::<T>::BlockNumberProjectIdNotExists)?,
 		};
 		Ok(block_number)
 	}
diff --git a/pallets/project-tips/src/lib.rs b/pallets/project-tips/src/lib.rs
index e377e5b..235a5e1 100644
--- a/pallets/project-tips/src/lib.rs
+++ b/pallets/project-tips/src/lib.rs
@@ -3,6 +3,8 @@
 /// Edit this file to define custom logic or remove it if it is not needed.
 /// Learn more about FRAME and the core library of Substrate FRAME pallets:
 /// <https://docs.substrate.io/reference/frame-pallets/>
+
+// One can enhance validation measures by increasing staking power for local residents or individuals with positive externalities—those who contribute to the network for a good cause.
 pub use pallet::*;
 
 #[cfg(test)]
@@ -154,6 +156,7 @@ pub mod pallet {
 		ProjectDontExists,
 		ProjectCreatorDontMatch,
 		ProjectIdStakingPeriodAlreadySet,
+		BlockNumberProjectIdNotExists,
 	}
 
 	// Check deparment exists, it will done using loose coupling