REpository upgrade?

[Valtam]

1. Remove the Teamviewer repository - https://www.linuxliteos.com/manual/software.html#pparem then be sure to remove the key on the Authentication tab of that same window.

2. Skype - try:

Code:

sudo apt-key export DF7587C3 | sudo gpg --dearmour -o /etc/apt/trusted.gpg.d/skypeforlinux.gpg && sudo apt-key --keyring /etc/apt/trusted.gpg del DF7587C3;

Update again and see if errors persist.