How to restore cards that disappeared from Apple Pay?

Hello guys all of a sudden all my cards got removed from my wallet, I tried adding my cards especially from my bank and when doing it it’s prompting me to contact card issuer when I have done they said it’s nothing on the banks end. Every time I double click power button nothing is coming up for my Apple Pay for example nectar/clubcard. I have reset my settings all my Apple Pay settings are clicked on.

[Re-Titled by Moderator]