Error While Trying To Edit Profile

Hi guys, i am running cscart ultimate V 3.0.6.

recently something strange hapened( i guess a bad third party social addon which i installed) eraseds the email address field of all my users. so i emptied the cscart_users table and then loaded a month old backup… well every client was then able to logon and place orders fine… but since that day, my users are unable to edit their profiles. they get a message saying "[color=#000000][font=Courier][size=3]Error_occurred" when they click on the “profile details” link under “My account” area. [/size][/font][/color]

[color=#000000][font=Courier][size=3]can anyone please tell me why do i see “[color=#000000][font=Courier][size=3]Error_occurred[/size][/font][/color]” while trying to edit profile? [/size][/font][/color]