GPGME error: No data & failed to synchronize all databases (invalid or corrupted database (PGP signature))

[anon89812132]

Try this

"gpg: error reading key: No public key" when updating manjaro-keyring

And you also tried: sudo rm -R /var/lib/pacman/sync sudo pacman-mirrors -f5 && pacman -Syyu and it did not work?