Bug (very important) – Video lab - free video editor movie collage photo video editing for Vine, Instagram, Youtube Review

I have been using this app for years, but I stopped using it 2 years ago because of a bug. When I press start, it usually says video, album (or camera roll), and cancel. I opened it again once, and I press start, and it only says cancel. Someone please help.
Review by TalkingBenYT on Video lab - free video editor movie collage photo video editing for Vine, Instagram, Youtube.