MDB2 Error: constraint violation; _doQuery: [Error message: Could not execute statement] [Last executed query: EXECUTE mdb2_statement_mysql_2cf2503ed6e36fb703aa922a2ec06aed51c79351e USING @0] [Native code: 1062] [Native message: Duplicate entry '2016-08-27 08:19:28' for key 'username']
EXECUTE mdb2_statement_mysql_2cf2503ed6e36fb703aa922a2ec06aed51c79351e USING @0