You left super damage on, it should only be used when needed as it shares memory locations with NPC's so they just kill each other very quickly. Go to an earlier save or start over I believe are your two choices.
I have done that.
But for some reason i can't get the story to move on. The "Speak to Sigurd on the docs" sequence just repeat. I haven't even started the cheat and i have cleansed my pc of any cheat temp files. I see on redit and other platforms there is manny others with the same problem. Someone has even started all over again and got the same problem at the same place in the story.