Hello! Hope someone can help please! Have been using Thunderbird to get my RSS feeds for years, and it was working until 10/12/20. I have already tried restarting with any add-ons disabled, to no avail. Specifically, a few years ago I exported an opml file from SearchTempest, then imported that into my Thunderbird newsfeed area, and it worked great, but not anymore. I have already tried exporting a new opml and loading that into Thunderbird, but same problem. At the bottom of the Thunderbird window, it shows the Craigslist URL (that comes from SearchTempest, which searches multiple cities on Craigslist), followed by "&format=rss could not be found. Please check the name and try again." There is a symbol next to the feed that is a red triangle with an exclamation point inside. When I right-click on that feed, "Pause updates" is checked. It did that on its own. I unchecked it, but it always rechecks it. (When I view the results within SearchTempest, they populate without error.) Thank you in advance for your kind help!

Thunderbird 78.4.0 (32-bit), up to date. Windows 10 version 1909 for x64