I got this figured out! Okay, so this error wasn’t actually what was causing the crash. I looked further up in my log and found these errors piling up:
I navigated to this .target.cs file and found that the numbers at the beginning of my project file name were being highlighted.
I renamed my project file (.uproject file, not project folder) to not have numbers at the beginning and now I’m able to package.
TLDR
Don’t start your .uproject file name with a number!