Autotune and Error Message

hello, i know autotune as software from a lot of normal studio sessions and i guess its a great audio tool. a few days ago i bought the app version of autotune for my ipad, to work with auria. BUT it doesnt work anyway! the sound is stuttering and the error message: audio frame buffer size is too large and not supported comes on my display. changings in the system does not help. plase check it out an i hope dorma solutin soon as possible. thanks

keks1401 about Auto-Tune Mobile, v2.3