Tried the Repair Tables fix, it didn't work hmm

Thank you for your reply, yemgi!
I have tried to contact my host, but they argue that nothing is wrong on their behalf.

Could you perhaps be a bit more specific as to what course of action I am to take. I am a noob. smile

Hi good people!

I seem to have run into a bit of trouble with my forum, from time to time, the forum stops working and displays the error message that it is "Unable to fetch category/forum list". I can't seem to find out how to fix it, and my webhost says it cannot help me/there is nothing wrong with the webhost... So I turn to you guys, I enabbled DEBUG mode and got this error message:

File: D:\www1\ondmis.dk\www\punbb\index.php
Line: 42

PunBB reported: Unable to fetch category/forum list

Database reported: Can't create/write to file 'C:\WINDOWS\TEMP\#sql_550_0.MYD' (Errcode: 17) (Errno: 1)

After some time, the forum starts working again as if nothing was wrong, but the error message returns again later.

I hope someone can help me smile