Crash in ipod 2g

PLEase fix this!!!! update!! I pay and cant use this app !!! The app is god for the price, i have a ipod touch 2g but the buttons "on" dont respond correctly, and i record with my micrphone and play in my headphones but if i unplug the headphones the app is crash and dont respond and dont playing anymore, please help in this problem

Angelmidi about iSample - Sampler / Recorder / Looper