Was a great pomodoro app, until it started becoming UNRESPONSIVE and SUDDENLY RESTARTS iOS Devices

This was one of the best pomodoro apps. However, in the past couple of weeks, it has caused my iOS devices to suddenly show a black screen with the apple logo...as if the device suddenly restarts by itself...I uninstalled the app...the restarts stopped...put the app back on...restarts resumed (if this pomodoro app runs in the background)...PLEASE FIX THIS ISSUE. Was a great app until a couple of weeks ago...now it is basically useless...since it randomly interrupts your activities...

Руский Хирург about Be Focused Pro - Focus Timer