Does exactly the same happen if you run the phone in Safe mode ?
- Long press Power button > Long press Power off icon > OK to accept Safe mode.
If yes:
[HOWTO] log app errors with LogFox on-device to create bugreports.
A fundamental error like this may be an install problem. Install /e/OS on a Xiaomi Redmi Note 9 - “merlinx”
Before following these instructions please ensure that the device is on the latest Android 11 firmware.
It might have been quite difficult to get the phone on the exact correct firmware.
[FAQ][GUIDE][HELP] Assistance Solution Centre for MERLIN 
(Redmi Note 9 / Redmi 10X 4G).