Compatibility with multiple fitbit devices

[DREJAG]

Hi,
I'm able to use your package and functions to connect to the Fitbit API for a single device and have successfully pulled data. However, what if i wanted to extract data from 2 or more devices? I have set up 2 separate API apps with unique client ID and secret. When I run the "generate_fitbitr_token" function for the second device I get an error message on the fitbit page (see screenshot). Is there a way to disconnect the app from the API, and connect another? Is this something to do with cache and web browser settings?

Thanks!