You don’t have access to this app, while using the authorization url

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1

While using the authorization url, getting this error:“You don’t have access to this app. This application is in development - only the owner of this application may grant it access to their account.”,

I am trying to login with the admin user only, still facing this issue:

2

While you are development, you may only use the 1 user associated with creating the OAuth app in the developer console. Admin and other users on the same site won’t work. When you are done, you can enable sharing so anyone with the URL can use it.