Unable to execute query.
Generally, this error occurs when a developer fails to initialize the variable or when there are incorrect values. It can also occur when binding sentence B rather than binding sentence A (after executing PREPARE) due to concurrency control failure in a thread environment. (Sentence A needs to be bound with 20 bytes but instead, sentence B is bound with 100 bytes, thus it is incorrectly handled.).
The user is advised to check whether the length exceeds the host variables output and verify that there are no problems with concurrency as part of the thread handling.