Err:1 download.opensuse.org/repositories/isv:/ownCloud:/server:/10/Ubuntu_18.04 InRelease The following signatures were invalid: … FULL ERROR TEXT: Err:1 download.opensuse.org/repositories/isv:/ownCloud:/server:/10/Ubuntu_18.04 InRelease The following signatures were invalid: EXPKEYSIG 2345JHGFD234R5T isv:ownCloud OBS Project Fetched 254 kB in 1s (379 kB/s) Reading package lists… Done W: An error occurred during the signature verification. The repository is not updated and the previous index files will […]
Repo is missing a Release file
E: The repository ‘http://download.owncloud.org/download/repositories/10.0/Ubuntu_18.04 Release’ no longer has a Release file. N: Updating from such a repository can’t be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. You should be able to just remove the repo, as I recommend against upgrading using the package […]