Hello, I was delete a customer from Admin-Customer, then I try re-sign up with same information (email, name etc), then appear on the screen text like this :

1062 Duplicate entry '10 for ket 1
in:
[insert into customers_info (customers_info_id, customers_info_number_of_logons, customers_info_date_account_created) values ('10', '0', now())]

Then I tries:
- optimizing the database after deleting a customer from Tools - Store manager, and...
- sign up again with the same info

but the text above still shown. I am use Version 1.3.7.1. Do you have ideas?

Thanks
Tono