eZ Publish Basic a community based framework and website cms

MySQL Query Error: INSERT INTO eZSession_Session ( ID, Created, LastAccessed, Hash ) VALUES ( '1229259', '1781466001', '1781466001', '6c930505ac8582e16ab6721e5f772149' )
Error number:5
Error message: database is locked
MySQL Query Error: INSERT INTO eZSession_SessionVariable ( ID, SessionID, Name, Value, GroupName ) VALUES ( '2006092', '1229259', 'SessionIP', '18.97.14.88', '' );
Error number:5
Error message: database is locked
eZ Publish Basic a community based framework and website cms

Failed to get article category definition for ID 21