Resolving package/module issues

I’m having a problem with a simple golang program. I don’t understand why I have a package/module issue -
/Users/bihaber/go/pkg/mod/cache/vcs/e7cb8c5d60e17908900ecd26e3860afc00c6f0097851d259585dbdb748dcde3a: exit status 128:
remote: Repository not found.
fatal: repository ‘’ not found
[~/explorer/golang]:Can someone directly to a document to help?

the github repositry does not exist,
are you using it directly or is a dependency ?