Instagram count not working since many months

Hi,

I’ve been using this plugin since many months now, but I noticed that my instagram count was static and stuck at 798 for many months (it is more than 1045 currently) .. I’ve tried everything.. deactivated and reactivated the plugin, blanked out instagram details in plugin settings, saved, refilled .. and now the count is in fact 0.

Finally I tried to again fetch the instagram User id/access token etc using the link provided in your plugin (https://www.instagram.com/oauth/authorize/?client_id=ee7687e689ad4305aef96adc76f2b855&redirect_uri=https://socialcountplus-instagram.herokuapp.com/&response_type=code)

However that link gives me this error:
>>>>
{“error_type”: “OAuthForbiddenException”, “error_message”: “You are not a sandbox user of this client”, “code”: 403}
>>>>

please tell me how to fix the instagram followers bug.