MDB2 Error: constraint violation; _doQuery: [Error message: Could not execute statement] [Last executed query: EXECUTE mdb2_statement_mysql_2faafe1f13b83415743661139c4a24479fad1c242 USING @0] [Native code: 1062] [Native message: Duplicate entry '2016-07-30 14:59:12' for key 'username']
EXECUTE mdb2_statement_mysql_2faafe1f13b83415743661139c4a24479fad1c242 USING @0