The software updater gives me error as below while checking for updates
Failed to download repository information
I am using Zorin OS 15.3 lite version and while I run the command
sudo apt-get update
I get the following response
Hit:1 http://ppa.launchpad.net/zorinos/apps/ubuntu bionic InRelease
Hit:2 http://archive.ubuntu.com/ubuntu bionic InRelease
Get:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Hit:4 http://ppa.launchpad.net/zorinos/drivers/ubuntu bionic InRelease
Ign:5 https://packages.zorinos.com/stable bionic InRelease
Get:6 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Hit:7 http://ppa.launchpad.net/zorinos/patches/ubuntu bionic InRelease
Ign:8 https://packages.zorinos.com/patches bionic InRelease
Get:9 http://archive.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Hit:10 http://ppa.launchpad.net/zorinos/stable/ubuntu bionic InRelease
Ign:11 https://packages.zorinos.com/apps bionic InRelease
Ign:12 https://packages.zorinos.com/drivers bionic InRelease
Err:13 https://packages.zorinos.com/stable bionic Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate. Could not handshake: Error in the certificate verification. [IP: 138.68.36.163 443]
Err:14 https://packages.zorinos.com/patches bionic Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate. Could not handshake: Error in the certificate verification. [IP: 138.68.36.163 443]
Err:15 https://packages.zorinos.com/apps bionic Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate. Could not handshake: Error in the certificate verification. [IP: 138.68.36.163 443]
Err:16 https://packages.zorinos.com/drivers bionic Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate. Could not handshake: Error in the certificate verification. [IP: 138.68.36.163 443]
Reading package lists... Done
E: The repository 'https://packages.zorinos.com/stable bionic Release' no longer has 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.
E: The repository 'https://packages.zorinos.com/patches bionic Release' no longer has 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.
E: The repository 'https://packages.zorinos.com/apps bionic Release' no longer has 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.
E: The repository 'https://packages.zorinos.com/drivers bionic Release' no longer has 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.
I am facing this since I reinstalled zorin os and server is set to main server.