Your error log show you're using a mod that refers to the new EFT .13 boss Zryachiy, he doesn't exist in SPT 3.4.1.
That is odd since all the installed mods are marked as 3.4.1 or 3.4.0.
But even when I did a clean install and started with no mods I was stuck with the same error.
EDIT:
Ok so I figured the error must come from SWAG as that is the only mod ialtering spawn patterns. I found the line refering to Zryachiy. I was just able to launch a raid succesfully. I will try more to see if it still comes up but I think it has been solved.
I still cannot explain how I ran into the same error in vanilla after a fresh reinstall