I am trying to migrate from one self-host to another self-host, but after entering the correct details of the original instance, the resources page starts spinning on all the checkboxes for about 5-10 minutes and then shows an error. I've attached images of the loading and then the error that is being shown.
TL;DR
Developers are facing issues starting migration from one self-host instance to another. After entering correct details, the resources page spins on checkboxes for 5-10 minutes and then displays an error. Images are attached.