Certificate and Signature issue when trying to install regolith

[HugoLuskas]

Hey,

I'm trying to install regolith desktop fresh on a Ubuntu 20.04 and I'm getting this when I go through the "sudo apt update" step. Would appreciate any help!

Err:33 https://regolith-desktop.org/release-ubuntu-focal-amd64 focal Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate. Could not handshake: Error in the certificate verification. [IP: 104.238.213.207 443]
Err:12 http://packages.cloud.google.com/apt cloud-sdk InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B53DC80D13EDEF05
Reading package lists... Done
E: The repository 'https://regolith-desktop.org/release-ubuntu-focal-amd64 focal Release' does not have a Release file.
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.

[comkieffer]

Are you sure your system clock was correct?

Certificate verification and key verification failing at the same time for repos managed by different organizations suggests an issue on your machine.