Hardware: VPS bought online
YunoHost version: 11.1.18
I have access to my server : Through SSH
Are you in a special context or did you perform some particular tweaking on your YunoHost instance ? : no
If your request is related to an app, specify its name and version:
Upgrade of Mastodon failed, and it wasn’t restored. Here’s the log for the failed recovery:
I think the crucial part is:
Reading package lists... W: GPG error: https://dl.yarnpkg.com/debian stable InRelease: The following signatures were invalid: EXPKEYSIG 23E7166788B63E1E Yarn Packaging <firstname.lastname@example.org> E: The repository 'https://dl.yarnpkg.com/debian stable InRelease' is not signed.
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add - as mentioned here and will report if that helped.