MDB2 Error: constraint violation; _doQuery: [Error message: Could not execute statement] [Last executed query: EXECUTE mdb2_statement_mysql_292dbd015f17e7f2198bdc67ee37a0d715ca743ec USING @0] [Native code: 1062] [Native message: Duplicate entry '2016-12-04 00:55:34' for key 'username']
EXECUTE mdb2_statement_mysql_292dbd015f17e7f2198bdc67ee37a0d715ca743ec USING @0