Quote Originally Posted by dellchase View Post
I'm using v1.5.5 now.

I do have hundreds of gift certificates over the years. I think I started using ZenCart some time during v1.3
Right, but which sub-version of v1.5.5? That database function (ExecuteNoCache) was introduced in Zen Cart 1.5.5f; if you're using a prior version, you'll need to patch your version of ot_gv.php.