Can someone PLZ fix this?

I don't have access to my dev environment so can't fix it myself, and I wanna use it! lol

I have the latest .NET 4.8.1 and after the initial loading screen w/progress bar, it just disappears entirely, so *Somethings* crashing that only is visible within the debugger, but I can't see it w/out visual studio. It's probably something simple.