Bulletproof Not Working

I still can't get this Bulletproof plugin to upload to Dropbox and work consistently. It work sometimes and then it stops working. Right now it's been at least three hours since the actually did anything. Please help. Thanks. This is there error I'm getting now: <div> <div>[26-Mar-2022 03:05:11 UTC] Chunked upload exception (Dropbox_BadRequestException): Error in call to API function "files/upload_session/append:2": HTTP header "Dropbox-API-Arg": cursor.session_id: 'None' expected to be a string, got null (line: 209, file: /srv/users/infosearched-network/apps/infosearched-network/public/wp-content/plugins/bulletproof-videos-youtube-channel-backup/res/Dropbox2/OAuth/Consumer/Curl.php) [26-Mar-2022 03:05:11 UTC] Failed to upload file to /BulletproofVideos/News-World-News/Trump denies knowledge of Russia bounty plot.mp4 (see log file for more)</div> </div> <hr /> <form method="post"><input name="bpvids_delete" type="submit" value="Delete Logs" /></form>