For those of you running #NewPipe 0.20.1 and wondering about the breakage, there is a temporary fix provided in the comments. Make sure you back up your database before installing. I had to uninstall 0.20.1 and then install this one which wiped my database (probably from uninstalling and then installing, but do it just in case).
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko