Hello @g1edrius ,
Can you please try to temporarily disable Wordfence plugin, and then run the backup process again?
Please make sure you don’t prevent PHP execution in wp-content/plugins directory, like in this example for /media: https://stackoverflow.com/a/71939506
That will prevent our plugin from running an alternate backup method.
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!