Thunkable x file does not delete

Hello, I have a file in my project that I can not delete, which causes problems when I try to build the application. I want to join Thunkable Pro but I’m not going to pay the monthly fee without being able to solve this problem! If anyone can help, I thank you!

@domhnallohanlon you can help me?

check your internet speed and give us some screenshot if u not give screenshots show how we can help u without any further details what should u do