Code is not running completely with action centre

@Anil_G This i can’t use because this is something different and i haven’t used it before also
Yes Persistence i already enabled it

I have seen some other Posts on these topic and tried those not working, i struck on the wait for document validation part only. I’m just confused how can i resume the task in unattended mode

Get form task won’t work for me because I’m not using form Action here.

Now I’m able to create the tickets in action centre but not able to get or resume those after approving that ticket.