Haven't seen that error, but from time to time they all suffer issue and scripts issues are pretty common. Not an issue from the forum software, but your browser. Sounds like you have enough installed to work around the problem.
Membership Required
We're sorry. You must be signed in to continue.Sign In
or Register
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .