Application has started to crash after updating for iTunes Connect

I have archived and uploaded the build file of my swift application to iTunes Connect and started to use TestFlight Beta Testing with internal testers from my developing team. After a while, I have made some updates and bug-fixes (as expected :)), archived new version, uploaded the new build file to iTunes Connect and disabled the old application. However, when the testers had installed the new app, they have started to face crashes while application is launching and there is not any crash report generated. I am using the same version without any crash/problem installing the app directly from XCode via cable, but people who are installing via iTunes Connect keeps crashing. I am checking my iTunes Connect again and again. I have updated version info in Versions segment, enabled TestFlight Beta Testing for new version (it automatically disabled the older one).

Testers have tried deleting the old version from their devices, but still crashing. What might be the problem?