Configure Publisher

I want to install publisher but not installing i am getting cors error always please guide me how to resolve this cors error

Unable to load data: Axios Error (Request): Network Error (possible local connectivity issue) get https://discovery.xxxx.in/api/v1/courses/.

Access to XMLHttpRequest at ‘https://discovery.xxxx.in/publisher/api/admins/organizations/users/?page=1&page_size=250’ from origin ‘https://apps.xxxx.in’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.

Access to XMLHttpRequest at ‘https://discovery.xxxx.in/api/v1/organizations/?page=1&page_size=500&limit=500’ from origin ‘https://apps.xxxx.in’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.

Failed to load resource: net::ERR_FAILED

https://discovery.xxxx.in/publisher/api/admins/organizations/users/?page=1&page_size=250

Please guide me how to do resolve it i am using this repo

please guide
@BbrSofiane , @regis , @uetuluk

Can you open your post on this forum please.