How do I boot into Ubuntu through Grub Rescue?

so I am new to how to do these, so I apologize if something I say is not how things are done here.

So I have been using Ubuntu 18.04 for a while now. Recently I wanted to try and dual boot LineageOS to just play around with it, and I think I may have damaged my Grub files (or whatever it is called). I have tried to force boot the partition with Ubuntu on it, but I keep getting the same error.

Grub rescue> ls
(hd0) (hd0,msdos1) (hd1) (hd1,msdos1)
grub rescue>set boot=(hd0,msdos1)
grub rescue>set prefix=(hd0,msdos1)/boot/grub
insmod normal
error:unknown filesystem.

I tried the same thing with set root=(hd0,msdos1) but that got me the same issue. I tried both of these variants with (hd0), (hd1), (hd1,msdos1), and got again the same errors. I am unsure of what to do at this point because I have gone through a lot of different things to try and fix this issue and none of them have done anything. Any advice or suggestions are welcome, and I appreciate all of it!

Note: I did try to boot off of a live USB, which gives me a blank screen, and if I try to boot it through Grub rescue ((hd1,msdos1) is its file system) and I get the same error through Grub. If there are any questions at all feel free to ask, and thank you in advance.