schedule backup keeps failing after upgraded from R77.30 to R81.10

[jomof]

Hello Expert,

I recently upgraded from r77.30 to R81.10 and  notice none of my schedule backup is working after the upgrade.

I am using the ftp method , but this keep failing,

As a troubleshooting option I tried a schedule backup to the local device this also fail.ED

I have 2 management server and 3 enforcer all using gaia ver 81.10.

I humble request some help not sure if there is a service etc that has to be enable .

Thank 

Regards