Cant run apt update in Modded Debian Xfce

Hit:1 https://download.mono-project.com/repo/debian vs-buster InRelease
Hit:2 http://ftp.debian.org/debian buster InRelease
Hit:3 http://ftp.debian.org/debian buster-updates InRelease
Hit:4 http://deb.debian.org/debian buster InRelease
Hit:5 http://deb.debian.org/debian buster-updates InRelease
Get:6 http://deb.debian.org/debian buster-backports InRelease [51.4 kB]
Hit:7 http://deb.debian.org/debian-security buster/updates InRelease
Err:8 https://packagecloud.io/headmelted/codebuilds/debian stretch InRelease
401 Unauthorized [IP: 54.215.56.250 443]
Hit:9 http://ppa.launchpad.net/tista/adapta/ubuntu bionic InRelease
Hit:10 http://ppa.launchpad.net/plasmazilla/releases/ubuntu bionic InRelease
Err:6 http://deb.debian.org/debian buster-backports InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E98404D386FA1D9 NO_PUBKEY 6ED0E7B82643E131
Reading package lists... Done
E: Failed to fetch https://packagecloud.io/headmelted/codebuilds/debian/dists/stretch/InRelease 401 Unauthorized [IP: 54.215.56.250 443]
E: The repository 'https://packagecloud.io/headmelted/codebuilds/debian stretch InRelease' is no longer signed.
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.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://deb.debian.org/debian buster-backports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E98404D386FA1D9 NO_PUBKEY 6ED0E7B82643E131


This is the error inside the pic.

Pls help me
Screenshot_20230824-144516_RVNC_Viewer.png
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