Your vbulletin userfield table is missing field2 which is the location field. This is a normal field we look for in the vb3 file. You would either need to modify your vb3.php file to not pull the location field or use phpmyadmin and add back the field2 in userfield table of vbulletin.
There are a few things you can hit in vb3 and delete things. I understand having the ability to add new profile fields but I will never understand why they would allow you to delete a default field