Virtual box-end kernel panic not syncing attempted to kill init exit code 0x00007f00

Hello,

I am just starting to use fedora and installed fedora 34,
I have two issues that are, first if i watch video,audio (netflix or youtube)sites then mozilla crashes, and closes itself.

Another is that I installed virtual box by following this instruction,

Then when i try to create vm and when i try to boot then it gives me error of kernel panic not syncing attempted to kill init exit code 0x00007f00 , i thought that iso file might be corrupted then i again re downloaded and used new iso file however i am getting same issue, and i have also virtulization enabled in bios as well, I looked over internet but i could not find anything, I also ran the program from root user as well but same problem, please help.

Thank You in advance!