Recent Error - Downloading files

Ok, just to be clear though, you've mentioned two different and unrelated issues:

1. com.foreflight.ForeFlightException: com.dropbox.core.v2.files.DownloadErrorException: Exception in download: {".tag":"path","path":"not_found"}:

This indicates that there was nothing found at the path specified for the download API call. This can be expected to start occurring without a code change, e.g., if the user deletes a file via the web site, desktop client, etc. Your app should be prepared to handle this exception.

2. com.dropbox.core.ServerException: {"error": "The server has either erred or is incapable of performing the requested operation."}:

This would indicate an error on our side. It can be expected to happen sometimes temporarily, If this is happening consistently though, we'd need a ticket with more information to investigate.