Hello, we are getting this error all around no mater what client we use. The site had been running ok for a year so it is not about permissions on a new site. 0777 on the content folder and as said before it was running perfectly fine.
I have read that the issue was "fixed" for the hotglue.me users but we have the instance running on our own server.
What is there to be done to understand what the problem might be?