MySQL ERROR

I was trying to change my password and I got a MySQL error, showing far too much information form your systems! Notice: Query: UPDATE users SET email = ardeshir@joymonk.com WHERE userid = '1404688777'
MySQL Error: 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 '@joymonk.com WHERE userid = '1404688777'' at line 1 in /home/.magellan/sthayden/booksiamreading.com/movingparts/register.class.php on line 280