Installed YouTube Mod, can no longer reply to any thread

[gigi37]

Hi,

I'm new to vBulletin and I apologize in advance if I am putting this in the wrong place.

I just did a fresh install of vBulletin, imported a phpBB3 board, and everything was functioning perfectly.

Users requested the ability to embed YouTube video, so I installed the following 3.8 Add-On:

https://vborg.vbsupport.ru/showthread.php?t=216048

It worked perfectly, but immediately after the installation, the forum stopped functioning correctly. New threads can be started, but no one can reply to an existing thread.

Firefox is delivering the following error message, IE just hangs:

Redirect Loop

Firefox has detected that the server is redirecting the request for this address in a way that will never complete.

The browser has stopped trying to retrieve the requested item. The site is redirecting the request in a way that will never complete.

* Have you disabled or blocked cookies required by this site?
* NOTE: If accepting the site's cookies does not resolve the problem, it is likely a server configuration issue and not your computer.

I first disabled then uninstalled the add-on, but the problem persists. I also went back to the original vBulletin skin, and turned off the Hook? system.

Same result. No one can reply.

Please help! I have no idea what to try next.

Thanks in advance.