Boot up gets stuck on same file, tried booting into read only and stuck on different file.

Hello. There was an update, then I had a drive fail. I hot swapped it and everything seemed to work fine. Later when the nas shut down it would not boot up again. 

Raid X
Netgear RAIDar shows my nas.

Boot up gets hung on a file called upnp.httpd.service everytime. Sometimes it is %90, sometimes %98 booted when it gets stuck.Left it on for a few days and no change. Tried a few times with same result. Tried to boot into readonly and boot gets hung on another file.

NAS is several years old and when I try to use the single service option for help it says "Not in my country". I am in USA.

I tried the OS instal boot, and it instals the os, then same boot issue of hung on unpn.httpd.service file.

I have not tried the USB method yet.

I can do a factory reset. I don't need old backups, just need to start backing up again. I am hesitant though, because I have a lot movies (with needed language subtitles) that will take a lot of time to put together again. So that is a final option after a week of trying things or so.

Suggestions?  Can I provide more info?

Michael Sammler