fix: Restricting operation on redacted customer (#289)

crates/router/src/core/errors.rs

@@ -60,6 +60,8 @@ pub enum StorageError {
     SerializationFailed,
     #[error("MockDb error")]
     MockDbError,
+    #[error("Customer with this id is Redacted")]
+    CustomerRedacted,
 }
 
 impl From<error_stack::Report<storage_errors::DatabaseError>> for StorageError {