Hello @sglaser ,
It seems that the backup process encountered a timeout limit within your Apache configuration and was canceled by the web server.
Timeout in Apache is not the same as max_execution_time and it seems to be set around 60 seconds on your server. Consider changing it to at least 300.
You need to adjust its value in your virtual host or global configuration and restart Apache, once you do that our backup plugin will be working properly.
In terms of browser extensions adblockers, resource limiters, and RAM control plugins can cause similar issues, so if you’re using Opera GX, Firefox, or Brave browser, it may just not work out of the box.
Let me know if that resolves your issue ??
Thank you!