Problems with blocking a user

I get the same error and cannot block anybody... not cool and it is actually a bit UNSAFE to not be able to block somebody. I researched for a couple hours and saw that this was a problem a long time ago and was supposed to be fixed ling ago but it is happening to me and it makes me very uncomfortable that I can't block anybody.
Any help?
Community Helper
A work around is going to the Offerup website to block the people you need to block. Just putting it out there until Offerup fixes the issue.
That link has you sign in and takes you right back to the same sign in sequence.