Problems with grub?

Question

linux

Everything was fine until I decided to touch grub, because instead of choosing an OS, there was only a black screen that booted the system itself after 10 seconds. As a result, after all sorts of machinations, I have this:


I tried set root, set prefix.
insmod normal
normal won't open.

Here is my partition table:


I tried to fix all this through boot repair, but to no avail here is its log:
Log

Who knows what could be the problem?