MyBB Community Forums

Hello and hope you guys doing well,
I don't know what just happened to my forum that when i wanna enter :
User Cpanel or when i click on forums or categories name i get this error

Quote:MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1 - Can't create/write to file '/tmp/#sql_1c53_0.MYI' (Errcode: 28)
Query:
SELECT t.*, p.displaystyle AS threadprefix, (t.totalratings/t.numratings) AS averagerating, r.uid AS rated, t.username AS threadusername, u.username FROM mybb_deliverthreads t LEFT JOIN mybb_deliverusers u ON (u.uid = t.uid) LEFT JOIN mybb_deliverthreadratings r ON(r.tid=t.tid AND r.uid='1') LEFT JOIN mybb_deliverthreadprefixes p ON (p.pid = t.prefix) WHERE t.fid='26' AND (t.visible='1' OR t.visible='0') GROUP BY t.tid ORDER BY t.sticky DESC, t.lastpost desc LIMIT 0, 20

I get this error as i said when i just wanna open user cpanel , trying to open forums or categories .

and if i open topics directly or admin cp / private msg or idk calender ,member list everything is perfectly OK with out having any error.

Do you guys have any clue what my problem might be ?

thanks is advance

I had this problem before, I had to contact my host about it.

It's a permissions issue with your server.

They need to ensure you have full access into that "tmp" folder.

The 'Community & Site Issues' forum is about issues with this forum and site, not yours... moved to general support.