Security Token/Custom Template Issue
 

Ok, so I ran through the thread on figuring out the problem with my vBulletin "missing or invalid security token" issue and found that it was in fact the templates that were causing the issue.

So now that I've found that the customizations were the problem, I haven't the slightest clue on where to begin looking for the fix, and I am extremely inexperienced with vb.

How do I find the template that is causing the issue? I've only made simple changes to layout, nothing extreme.

Also, this is 3.8.1 fresh from install, never been upgraded, never added any modules after the initial install.

Help.