`openconnect` Connection Error on macOS 12.5 with latest `vpnc-script` version

Hi there, openconnect was working fine with macOS 12.4 and old versions of vpnc-script (before the commit e9c9bae6). Now with the latest system and vpnc-script, I am getting the following error when connecting to Cisco anyconnect VPN:

add net default: gateway **.**.**.**
 is not a recognized network service.
** Error: The parameters were not valid.

I don't know how bad this error is, but the functionalities of openconnect doesn't seem to be affected (e.g., I can get the IP address from the VPN provider)

I have tested a few versions of vpnc-script, and it turns out this error only occurs after the commit e9c9bae6.

Do you know what's happening here? Could it possibly be a configuration mistake on my end? Thank you!