Random restart and temperature 🌡️ notification

[KraKen]

Please tell us some basic information before asking for help:
Model Name: rog phone 2
Firmware Version: WW.........2009.49
Rooted or not: not
Frequency of Occurrence: twice a day
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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My phone randomly restarted twice in a day and after 2nd restart it is showing me this type of message


What is this???
I haven't charged my phone for 4 hours.
And what to do about this restarting problem.
Both the time, my phone restarted when i was going for my recent menu.

[ARP_ASUS]

Hi ,
You seem to be on latest software version which is good, you can try a factory reset once.
If it doesn't help.
Kindly visit the nearest service center:
Due to the lockdown, service centers may not be functional. Kindly call the service center before you visit one.
https://www.asus.com/in/support/service-center/india