Crashes and Doesnt work with its own equipment

So when I first downloaded the synth station app I used a mpk25 for controlling midi and everything was going smoothly until I recently updated to the actual synth station49 keyboard and when I did upgrade I lost all sound. Every other app works with their keyboard but the app meant for the keyboard. The whole keyboard turns on and controls all the functions of the app but with no audio these features become useless

KappanTheise about SynthStation, v3.2