Master is not updating any more

I have a paid account…
use 3 sids, 2 active and 1 master
I did use 2 sids for long time, and the master was working well.

Only for a few weaks ago the master is not updating anymore:

So is there somthing different in the settings?
Or what can i do ?

The two child systems have stopped uploading so no data is aggregated to the parent