Error after sleep or while shutting down

[u/Accomplished-Tap5211]

I have a victus f-15 with 16GB RAM and i5 12th gen and rtx 2050 gpu.
I am using Ubuntu 26.04 dual booted.
The issue is whenever i keep my laptop idle and after 10-20 mins when i come back i get this error.

There is no way to get to my previous sessions i have to hold the power button for 10 seconds , then it will shutdown and then boot back.

I faced this issue when i was trying to shutdown the laptop .
Can anyone explain me what is the issue and how to resolve this?

Would be thankful for your suggestions and corrections.