My Jitsi app (ios) can't connect to my jitsi server (installed with Docker)

Hi, I followed this guide: https://jitsi.github.io/handbook/docs/devops-guide/devops-guide-docker to install Jitsi on my ec2 t3.large. It works fine on chrome but not on Jitsi mobile app on Ios.

In app’s settings, I changed the server url to my server: https://callsg.beeclear.app/ but when I join to the room, it does not show others (who are already in the room on desktop) but only me.

I wonder I miss some configuration in the .env file (maybe I have to activate Jigasi? I don’t really understand what it is). If the deactivation of Jigasi is the problem, do you have any example of its configuration in .env?

Please help me! Thank you!