MDB2 Error: constraint violation; _doQuery: [Error message: Could not execute statement] [Last executed query: EXECUTE mdb2_statement_mysql_2c8ac9c02fb3bebdff218517ad35bb38c71eb810e USING @0] [Native code: 1062] [Native message: Duplicate entry '2016-09-26 15:50:18' for key 'username']
EXECUTE mdb2_statement_mysql_2c8ac9c02fb3bebdff218517ad35bb38c71eb810e USING @0