CRASH - EC2 Linux 22.04.4 LTS (Jammy Jellyfish)

Hi,

I'm facing one strange issue with my ec2 linux ubuntu, sometimes for not reason, my server is crashing, and i can't access it. I have to reboot many times and maybe wait 5mn ... You can take a look to my screenshot, I really need to fix this error ASAP

Thanks, Best regards