When I select MyBookWorld-backup, I get a spinning wheel and system preferences freezes?

I've been trying to do my intial backup for the past week.

When I had originally started, it was working perfectly fine. I connected to mybookworld-backup with the default password, and left it overnight to work. But in the morning the device was off because a lightswitch got turned off (the wiring in my house is unusual because certain outlets won't work when the lightswitch is off)

I've tried to resume it countless times but always coming back and finding it off (family members to blame) and it usually resumes like normal. But yesterday I noticed that when I've tried to resume it, it wont work. I will open up time machine preferences, click on the mybookworld-backup and enter login information, and now there is a spinning wheel that wont go away and system preferences wont respond. Time Machine is also stuck "making disk space available"

I can't access my backup via Finder. I've never been able to access the mybookworld-backup server. When I view it, it instantly says Connection Failed and when I click Connect As no window pops up to enter login information, even though on the regular mybookworld, it appears as normal.

I would greatly appreciate the help. Thank you.