Error "can't process" tar.gz file

I just tried to upload a 734M tar.bz file (actually a backup of my mail data, and almost immediately got an error: "Can’t process /media/ARCHIVE/BACKUP/Evolution/evolution-backup-20150502.tar.gz - GDataBadRequestExce… ".

I’m running Linux Version 1.1.3.32034 on Ubuntu 14.04 (the latest version in the Ubuntu repository).

Can anyone suggest what might be wrong?

Cheers,
wurlyfan

@wurlyfan Please send your logs to support@insynchq.com for investigation: How to find the log files. You can compress them before sending to save space.