It usually means that an offline transaction was scheduled earlier but its no longer considered valid. Maybe because the package state was changed before updating?
There is also a same error here ^
Probably your curl(56) error might be the reason behind dnf5dameon-server message.
You will need to clean the offline transaction then refresh for normal update.
sudo dnf5 offline clean
sudo dnf5 clean all
sudo dnf5 upgrade --refresh
systemctl reboot
If curl(56) erorr returns i wouldnt change DNS at first but rather get the full error.
If it does then share the output of