Iphone Mobile plan Removed Problem

Hello Community I’m facing some problem with my device I don’t know why it’s happening but please if anyone knows whats this plz help me.

so the thing is I have a iphone 13 and I’m using only one physical sim from 1 year on it for personal uses but just 1 month ago I install an esim on it for Secondary uses and i was using both of them perfectly fine but like 3 daya ago i got a message from my device saying that your mobile plan removed when i turn on the airplane mode and turn it on nothings happen so i power of my device and turn on then i got my physical sim signal but after 1 day it’s again happen and it’s keeps happening with me day after day… thats the problem

plz Help Me with that I post an screenshot regarding it 👇🏻