Weird issue when using apt update

[InvaderSumo]

I did sudo apt update and it gave me this.

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://repo.protonvpn.com/debian stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8DD48989F43719CA
W: Failed to fetch https://repo.protonvpn.com/debian/dists/stable/InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8DD48989F43719CA
W: Some index files failed to download. They have been ignored, or old ones used instead.

I tried installing protonvpn with a deb file in the past before I bought IVPN. I removed the directory with "rm -r" now it always gives me this message. I dont need anything that has to do with proton on my laptop.
How do I get rid of this??? https:// repo.protonvpn.com isn't even inside of my /etc.apt/sources.list.
the only thing that in there are normal deb links.

 

[craigevil]

If you have inxi you can do

inxi -r

it will list all of the repos in your sources.lists

The list should be called /etc/apt/sources.list.d/protonvpn-stable.list

sudo rm /etc/apt/sources.list.d/protonvpn-stable.list

Should take care of it.

 

[kc1di]

Which Distro are you using?

 

[Brickwizard]

you do not say which distro you are using, so this is generic

open the update manage
go edit
software sorces
additional repositories
find and delete proton

 

[InvaderSumo]

If you have inxi you can do

inxi -r

it will list all of the repos in your sources.lists

The list should be called /etc/apt/sources.list.d/protonvpn-stable.list

sudo rm /etc/apt/sources.list.d/protonvpn-stable.list

Should take care of it.

THANKS! that helped. Ill remember this for future reference.

 

[InvaderSumo]

Debian always. though when I get a new laptop I may switch to Linux Mint. I fixed it though thanks for the help.