В чем ошибка SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens?

Владимир Римидалв, SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '@gmail.com' at line 1

с этим что делать