Error accessing discutions
I have this strange error and I need an advice, if possible. My Vanilla version is 2.1.6
So...I have 2 discussions in my forum that have a lot of comments. As ADMIN, I can access these two discussions. As a USER (that has MEMBER rights), I cannot view these two discussions and I get this error: "Something has gone wrong. We've run into a problem and are unable to handle this request right now.Please check back in a little while." As a MEMBER I can view any other short discussion except those two that have a lot of replies.
Any idea why is this happening?