I have no clue what could be wrong here. Try clicking on the magnifying glass next to “Add to Viewport” in the error message. Make sure the node causing an error is actually that one.
Widgets are some of the most annoying things to get rid of- I’m not sure how that could’ve happened.
Also make sure you don’t have two variables that are very similarly named. You can’t make duplicate variable names, but you can have spaces:
All different variables, just with a different number of spaces following the “HUD”