We needed to publish a fix version to get rid of crashes at app start.
Get #newpipe 0.21.12 from our #fdroid repo for an easy upgrade https://newpipe.net/FAQ/tutorials/install-add-fdroid-repo/
A few more details about the crash can be found in this blog post:
https://newpipe.net/blog/pinned/release/newpipe-0.21.12-released/