getting error in Squid Web proxy SSO (kerberos)

[Vharry]

Hello, guys,

I installed an OPNsense DVD and I installed the plugin squid web proxy. Now I'm encountering an error while configuring the Squid web proxy SSO (Single Sign-On) in OPNsense. The error message I'm seeing is:

An API exception occurred
/usr/local/opnsense/mvc/app/controllers/OPNsense/ProxySSO/Api/ServiceController.php:35: Class "OPNsense\Proxy\Api\ServiceController" not found

I'm unsure about how to resolve this issue. Could anyone guide troubleshooting this error and getting the Squid web proxy SSO working correctly? Also getting this error from OPNsense DVD itself.

Thank you in advance for your help!"