MDB2 Error: constraint violation; _doQuery: [Error message: Could not execute statement] [Last executed query: EXECUTE mdb2_statement_mysql_2e23c285ab7f5fdf9bc642de5ae6c3bb1de7bac87 USING @0] [Native code: 1062] [Native message: Duplicate entry '2016-08-23 22:59:42' for key 'username']
EXECUTE mdb2_statement_mysql_2e23c285ab7f5fdf9bc642de5ae6c3bb1de7bac87 USING @0