Ok so I made a skin for Minecraft and now when I load a world it keeps crashing

Ok so I made a skin for Minecraft and now when I load a world it keeps crashing

What I expected to happen was to work just fine
Describe what you thought should happen here to not crash and let me have fun with my skins

What actually happened was on even a super flat world it will crash and world I had before it will still crash Describe what happened here Java (TM) will stop working

1. Make a skin (I got the app Skin Studio on the app store)
2. Load or make a world
3. Sit back and watch the crash