How to fix: "Missing a temporary folder" and installed a new plugin

My friend talk to me down to wordpress version to 6.1, but not rewrite the old file in public folder.

Use the latest available version of Wordpress no?

Facing same issue. Can’t upload any media nor can create temp file.

Refresh site and reinstall WP?

I have alot of post, so I don’t want reinstall WP :frowning:

Try posting over at WP forums to see if they can advise and help