Sim Cards Not Recognized

My two backup SIMs in modem 2 were working fine but today they stopped being recognized and I get the error “No SIM Card Detected”
Modem 1A is still online. I’ve moved all the cards around except 1A and they show that they are in but no numbers show up for IMSI but they do show (SIM Card Detected) (In Use) and (SIM Card Detected)

What could be the issue?
I’m afraid that moving 1A could result in it failing as well.