The image doesn't show a problem, it is reporting when the avast VPS was last updated not when it last checked (as Igor said), if you check both times (about avast and system clock) you will see there is only a little over an hour difference.
The 30 minute check figure is just that a check and if it is avast for home that figure would be ignored as the minimum is 120 minutes.
The question says auto update hasn't worked for 3 days and the image clearly shows it is working.