Didn't you open a ticket?
Just add the details of this error to it; it's most likely related to the other one.
I believe he was referring to a XenForo support ticket, hereNow I opened a ticket and they answered, they said that there is nothing to do with the server, its xenforo's problem.
It is possible you may see more information in debug mode, I realize it would not fix your problem.Tried, but this didnt solve it. Thanks anyway.
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