CONSTANTLY CRASHES ON IPHONE PLEASE READ – Ultimate Mouse Lite Review

I've been using this app for a LOOOONG time, have never had any issues...until conducting yesterdays experiment. My friend came over to my apartment and installed this app on HIS iPhone. By mistake he didn't connect to my wifi first so he was not able to connect, which is expected. However, even after making sure he was connected to my wifi, the app crashed and force-closed after a literal 3 seconds, every time he opened it. Interestingly, the app on MY iPhone (same model/same iOS) continued to work flawlessly. I decided to experiment and attempted to connect with the wifi OFF, and now the app on my iPhone is crashing every time even when connected to wifi. I have uninstalled and reinstalled app, but it has not resolved anything. There is a definite bug in the app that needs to be fixed PLEASE as this app was amazing when it worked ):
Review by IvanJoanz on Ultimate Mouse Lite.