this is VERY similar to what I got:

Gave up waiting for root device. Common problems:
— Boot args (cat /proc/cmdline)
— Check rootdelay= (did the system wait long enough?)
— Check root= (did the system wait for the right device?)
— Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/disk/by-uuid/11d3bcfa-0726-47cf-a705-e4acdd9169fe does not exist.
Dropping to a shell!

BusyBox v.1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell (ash)
Enter 'help' for list of built-in commands.

I tried booting up on Linux 19.X, going to harddrive
and changing rootdelay to 90, and it still failed.

What else can I do?

After waiting awhile, I also got the following:
419.777811
419.780836 No Local VAriables are initialized for the Method [_q70]
419.781082
419.781778 No Arguments are initialized for method [_Q70]
419.782424
419.783179 ACPI Error: Aborting method \_SB.PCIO.LPCB.ECO._Q70 due to previous error (AE_NOT_FOUND 20210730/psparse-529
419.779042 ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCIO.LPCB.ECO._Q73.ITEM] AE_NOT_FOUND (20210730/psargs-330)

This is your problem.
Your root partition's UUID used to be 11d3bcfa-0726-47cf-a705-e4acdd9169fe, now it's something else I guess.
You need to find out the new UUID, then fix your grub.
One way is by booting live from some USB stick, run and replace the old UUID with the new one in /boot/grub/grub.cfg
Or you can boot a rescatux image and use the Grub repair option.

Thank you ondoho. ..
I tried to give you some reputation,but I have to spread it around I guess.

I lost everything. . .I had to reinstall the whole operating system.

Thank you for your help.

Dwayne