My panel RT is crashing [ screen automaticaly close and show Panel control panel] .After a few second it will restart back the Startup Screen. It does not happen every time and on the same screen but the frequency is too much to ignore. My project uses a few custom controls on the pages. Running in PC runtime does not cause any issue only using Panel RT will happen.

I check on the trace forwarded any notice that this Error will come up each time when the RT crash.

Detected Stop Manager #5 "HmiGuiM" - restarting it #1

(the number after stop manager is not always the same) . 
Is it possible to troubleshoot to know the reason the stop manager is activated?

Panel info :
MTP2200 Unified Comfort Panel
Runtime Version : V19.0.0.3
Bootloader : V19.00.00.03_05.04.00.01

Regards