Help - Can't claim server DS218+

I have had PMS running flawlessly for a long time. Suddenly, it stopped working. I ended up reinstalling PMS on my DS 218+. Now I’m getting “Server Not Claimed” message.

I have read numerous strings on this, but the DNS and other fixes don’t fix the issue. (notification says server is unclaimed and not secure, I click “Claim Server” and it just spins).

I don’t know if this is related or not, but I also cannot watch a good portion of my media in the Plex brower app (movies I have watched via Plex before). I am now getting this message: “Conversion failed. A required codec could not be found or failed to install.”

Log files are here: http://gofile.me/4NiX1/wvggPjzOt

Thanks for any help!