Quote Originally Posted by starruby View Post
I used the pre-patched file available with the release pack.

I never changed that particular file since zen cart installation. I tried uploading the original zen cart admin.php file but still doesn't work.
Have you applied the Zen Cart security patch (i.e. as opposed to the Admin Profiles patch)? If so, are you sure that it was applied correctly (i.e. all files in the right places)?

Since you're having a problem creating a new user, and that's not something that Admin Profiles is involved in, what other mods do you have installed?