How to reset/remove dvr in Live TV & DVR?

I’m having this same issue of the error page that prevents any setting changes! I’m on Version 1.25.2.5319.

I’m getting this generic error page and can’t remove or reset the DVR Live TV page. None of the help at these posts are applicable since they assume you have GUI control of the DVR settings and you don’t have this all-blocking error page described at the end of the post above.

Not helpful, no insturctions to refresh/remove Live TV & DVR settings outside the GUI → Live TV & DVR (Set Up and Manage) | Plex Support

Also not helpful, because I can’t complete the 1st step without a GUI: https://www.reddit.com/r/PleX/comments/dadjle/delete_the_old_dvr_settings_from_server/

Informative for why I’m having the issue (since I didn’t update before Jan1st), but again not helpful since I need a GUI to delete: Live TV EPG - The update you’ve been waiting for

This post is also helpful as to why I’m having an issue, but again need the GUI to correct: [RESOLVED] Live TV & DVR - Guide data for this DVR will no longer be updated after January 1, 2021

Sooooo, How on earth do I reset and remove the only DVR that I have in the Live TV & DVR settings if I’m getting this error page that blocks me from doing just that? (And says go to this forum for help)