unreal editor stuck on splash screen while loading

My Unreal Engine suddenly crashed, and when I tried to relaunch it, it got stuck on the splash screen. Every time I close and reopen the project, it freezes at different points, such as:

  • Verifying K2Node_FunctionEntry
  • Verifying K2Node_IfThenElse
  • Verifying K2Node_PromotableOperator

… or within my blueprints, etc.

Why is this happening? Please help, I can’t open my project