Serious Issues!!

Locked up my phone, screen completely unresponsive, Im running iOS 10.3.3 which is latest update maybe thats the issue (good ole apple always screwing things up). Also, screen started flashing between lock screen image and background image and some sort of mix of both. Restarted phone, same issue. Had to delete app, phone was completely screwed with app installed

Dye1868 about YouTube Capture, v2.0.2