Keep getting notification of a background item being added

Core Tunnel Ask for Support
1

how can I completely uninstall this app and get rid of these messages?
Screenshot 2023-02-14 at 9.22.10 AM

2

Which version of macOS are you using? It seems there is a similar bug in recent version of macOS Ventura:

https://discussions.apple.com/thread/254341579

Kindly Regards,

Yang