Keeps crashing

I was so happy to find this app so I could create playlists and see how many minutes they were in length. It was easy to use to create and edit my playlist, but now I cannot open it without it crashing every single time. I havent been able to use it even one time. Does this app require wifi to run without crashing?

Meash20 about Playlist-Creator: The Ultimate Running, Driving, Workout, Dance, Party, and Relaxing Music Organizer!, v6.0.1