Urgent: Error suddenly occurred to my site for no reason

[dealbyethan.com]

Hi,

Suddenly, my site has the following error and is now not working.
1 Can't create/write to file '/tmp/#sql_123e_0.MYI' (Errcode: 13)

I have no idea what this means. Please help. Thanks in advance.

Best regards,
Ethan

[verdon]

Looks like a server issue. Like the server can't write to /tmp to create a session file. Likely permissions or /tmp is full. Youy should talk to your server admin

[DrByte]

Right. Report it to your host immediately.
Also, if your host is a cPanel site, you can go to the MySQL page and click on "Repair Database" beside the database-name.
Or you can use phpMyAdmin to attempt a repair on individual tables via the Operations tab.