job.batch/jx-boot fails to start Pods when Installing Git Operator on On-Premises K8S

[OmarCherdal1997]

Please we're facing an issue when installing Git Operator using the < jx admin operator --username mygituser --token mygittoken> command on Onpremise Kubernetes cluster.
All the Pods are in Init:Error state with the following message:
WARNING: could not default pipeline user/email from requirements as file does not exist: jx-requirements.yml
setup git user email [email protected]
generated Git credentials file: /workspace/xdg_config/git/credentials with username: *** email:
no custom git initialisation scripts
ran git init commands: echo 'no custom git initialisation scripts'
error: failed to git clone URL https://github.com/***/***.git to dir source: failed to clone repository https://github.com/***/***.git to directory: source: failed to run 'git clone https://github.com/***/***.git source' command in directory '.', output: 'Cloning into 'source'...
fatal: unable to access 'https://github.com/***/***.git/': Could not resolve host: github.com'