I’m installing Nextcloud AIO v10.10.0 using the spaceinvaderone container on Unraid and my AIO is stuck on:
“It seems at least one container was not able to start correctly and is currently restarting.”
The logs you posted seem to be from the later container restarts. The one you need to find - which will container clues about the original cause - are the earlier entries (which don’t appear in your screenshot).
I tried restarting the system, pruned everything for a clean install,
The full process involves more than just pruning. Did you see the documented process that is linked to in the error message here?