[Registration]Error occurred while creating account.

[kiddycow]

this message shown up when i try to creation the account.
I think this problem comes from the code execution that i hv made when i tried to
reset the stat in the phpMyAdmin since I was going to run the website tomorrow so i reset all testing purchases that i have made preparing for the big day, but now i have crashed my site. T T

TRUNCATE TABLE `ps_customer`;
TRUNCATE TABLE `ps_address`;
TRUNCATE TABLE `ps_orders`;
TRUNCATE TABLE `ps_order_detail`;
TRUNCATE TABLE `ps_order_discount`;
TRUNCATE TABLE `ps_order_history`;
TRUNCATE TABLE `ps_message`;
TRUNCATE TABLE `ps_cart`;
TRUNCATE TABLE `ps_cart_product`;
TRUNCATE TABLE `ps_cart_discount`;

i have read that it has something to do with prefix??? but have no idea how to fix it. pls help.
im really a newbie here.


ps. sorry for my poor english.
Thx