Dropbox Sync won't start

[TurboTronix]

I can't start this app

My config:

{
"oauth_access_token": "xxxxxxxxx",
"output": "HassioBackup",
"keep_last": 3
}

[TurboTronix]

20-01-08 02:29:18 INFO (SyncWorker_14) [hassio.docker.interface] Clean addon_7be23ff5_dropbox_sync application
20-01-08 02:29:36 ERROR (SyncWorker_14) [hassio.docker] Can't start addon_7be23ff5_dropbox_sync: 403 Client Error: Forbidden ("endpoint with name addon_7be23ff5_dropbox_sync already exists in network hassio")