MyBB Community Forums

Hello, I get the following error whenever I try to connect to my website. But only when using one computer or my phone. Other clients seem to have no issues connecting.
I have already cleared my cache, temp internet files and flushed my DNS. THanks for any help! SourceBLockMC.com

EDIT: Now other user's are getting the same error.  Desperate for a solution to this <3
Error:

Can you take a look at the error.log file (usually /var/log/nginx/error.log or another file in that dir) and post any lines involving the 400 code here? 400 could mean quite a few things, so having the log lines might help.