How To Authorize Dropbox for Snapshot

Greetings!

I have Snapshot installed on a multisite and am trying to configure it. I'm logged into my Dropbox account, but can't seem to authorize Snapshot, and when I try to add Dropbox as a destination, I get the following message "The first step in the Dropbox setup is Authorizing Snapshot to communicate with your Dropbox account. Dropbox requires that you grant Snapshot access to your account."

Thanks!