Pass deactivated itself

I have been travelling for just over a month so far.

About once a week or so I get a notification saying "Open your pass to keep it activated". So far I've opened it immediately amd haven't had any issues.

About 6 hours ago I got one of these notifications, but it was almost 2am so I went to sleep fully intending to open it when I woke up.

I have just woken up now to find my pass has basically been deleted, and I can't contact anyone through the app because it keeps saying "There are some technical difficulties right now".

Worst comes to the worst I'll have to buy seperate tickets for the rest of my trip, and I've already bought any necessary seat reservations and have them printed with me, but is there any way of getting my pass back? Or does 'within 48 hours' actually mean 'within 6'?

Thanks for any help.