Not working in ios 7.1.1

Cant preview ringtones as i used to do on ios 6.1.3...
Please fix it... This app is good, the problem is, the audio isnt playing on preview, its kinda slow since ios 7.0.4... but the app worked pretty well...
Now on this Apple Update it is all messed up..

N3k01337 about Ringtone Maker - Make free ringtones from your music!, v2.2