I won't go in depth (sorry) but basically I didn't know that hlt would continue after a interrupt, causing my hang to not work.
I loaded my kernel (which is a test kernel currently) at 0x0000:0x7000 which is actually perfectly fine but I used hlt to hang, not knowing that hlt wouldn't actually hang and so the CPU would basically go all the way down to 0x0000:0x7C00 (the bytes were 0x00 for some reason) and something would go wrong in the boot record (unsure what exactly) which caused the jump to disk_error.
Sorry for any grammar mistakes I made (I am in a rush).