Hi! Can someone help me? I am unable to install any plugin whatsoever. Every time I try I get this message: "An error occurred while installing Thumbnail rebuild: Could not create directory."
A few days ago I was unable to log in. I was told to delete all cookies, etc. I don't know if this has anything to do with it, but after this I was able to log in but not able to install plugins or work on themes.
Does anyone have an idea what can be wrong and what I can do to fix it?
Thanks in advance for your help!