ORA-00034

Title :

ORA-00034 cannot string in current PL/SQL session.

Cause :
An attempt was made to issue a commit or rollback from a PL/SQL object (procedure, function, package) in a session that has this disabled by a ALTER SESSION DISABLE COMMIT IN PROCEDURE statement.

Action :
Enable commits from PL/SQL in this session, or do not attempt to use commit or rollback in PL/SQL when they are disabled in the current session.