Crash while opening app with URL Scheme in iOS 8

![alt text][1] [1]: /storage/temp/48740-螢幕快照-2015-06-23-下午44848.png I can open the app normally in iOS 7 with URL Scheme. But in iOS 8 crash. Though I open the app first and use the URL scheme to stored the parameter. The app will be called. but the parameter is not stored in iOS 8.