I change my cookiepath to /forums/ and now I can't access my ACP. Any ideas on how I could fix this problem?
1. Upgrade to MyBB 1.8.4..
2. Revert the cookiepath to a proper value in inc/settings.php
I think I am running MyBB 1.8.4 and I have MyBB in a sub folder called forums. Shouldn't the cookiepath be /forums/?
What's your board URL? And I don't think you're running 1.8.4 because cookies in ACP are set automatically in that version and changing cookiepath shouldn't influence it in any way.
Your board URL is wrong and that should be updated in inc/settings.php (bburl setting).
Ohh, fixed thanks. I feel somewhat stupid now xD