MyBB Community Forums

Every time I try to update user groups I get this error:

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
2006 - MySQL server has gone away
Query:
REPLACE INTO mybb_datacache SET 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(it continues here, too large to paste all)

Any tips how to solve it?

Your MySQL server is either not up or malfunctioned. You need to contact your host.

My server is up and it is working fine. It's not problem with my server host.

---

Rebuild cache for forumpermissions gives the same error.
(forumpermissions 897.72 KB Rebuild Cache)

This is certainly an issue with your host. It's not caused by MyBB.

But it's only for forumpermissions. Could it be that I have too many forums or something like that?

I'm pretty sure my host is fine because I have one more mybb installation in this database and it's working fine.

No MYBB supports ulimited forums. try unistalling the most recent thing you installed that may bevthe cause

It is a pretty massive query; how big is your forum?

(2012-08-03, 02:05 PM)Paul H. Wrote: [ -> ]It is a pretty massive query; how big is your forum?

I've 4'026 Threads, 964 Registered Users, 142 forums and categories (together), Total Database Size 243.38 MB, Total Cache Size 1.08 MB.

We recently migrated from smf using merge system and I'd really like to fix this.

Thank you for your reply!

This is exactly the problem I am experiencing. After merging from SMF too! Did you ever find a solution to this problem?

This is my support topic: http://community.mybb.com/thread-123747....+gone+away

(2015-08-23, 07:23 PM)SourceVG Wrote: [ -> ]This is exactly the problem I am experiencing. After merging from SMF too! Did you ever find a solution to this problem?

This is my support topic: http://community.mybb.com/thread-123747....+gone+away

Hello! Yes, I got that solved. I really don't remember how as it was few years ago.
Maybe try cleaning catche or using mybb internal tools to fix db errors.