WordPress database error: Can’t create/write to file

As Podz mentioned in this thread, it’s an environment issue so you’ll need to contact your host.

“This thread” is blue, and hovers, but isn’t an actual link.

Well, in the long run, you’ll have to contact your hosting provider. It’s an environment issue.

What your provider need to do is set some rights correct or re-start mysql. Looks like if this just happend over time the harddisk could be full…..