Using Zencart 1.38a + security patches

Modules Installed:
Better Together Admin
Image Handler2
Database Backup MySQL
ZenLightbox


I am unable make any changed and then update customer profile. As soon as I hit 'UPDATE' it takes me back to Admin page and then when I go back to check it I can see that nothing has been changed.

It also seems to be adding incorrect freight. But to check that I need to change details in the customer page so that I can test the freight.

Please suggest where or what to look for to fix this Customer Update problem.

Thankyou