Alright, it was really easy to remove
Opening the .exe on Dnspy we can see that the methods have some kind of decompiler crashing.
So what i did was simply loading the .exe and writing each instruction to console to see what is going on.
Well a lot of ldc.i4.6 appeared as you can see here
Simply made a quick tool to remove this
Now you can open it on dnspy and see the actual code. But there are some anti-debuggers so i
modified the tool that i made to remove the antidebuggers too. like this
You can simply debug it now