8.4.4 upgrade to 8.5.0

I updgraded, had issues, then restored to my 8.4.4 backup. Now I am getting the following error: mkdir(): File exists

I have no idea where this is coming from, I can't login, view another page, nada. Has anyone ever had this error? No matter which backup I go to, this page is always showing.

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edsaxmoore replied on at Permalink Reply
It turned out to be a server PHP issue.
Falconova replied on at Permalink Reply
I had issues too. Installet 8.5 and now i cant install none themes, and i cant delete them eiter