Getting error on third party plugin intgration

Hi Support team,

We are trying to integrate NetCore smartech push notification service into our application but meanwhile installing the pods into the source code we getting error "Unable to add a source with url [email protected]:gonativeio/gonative-specs.git".

And I also search this plugin into application panel but netCore Smartech push notification is not there So Please tell us how we can integrate push notification by this tool.

Thanks and Regards
Priyansh Sharma