Crash on OSX El Capitan

It’s true it’s for beginners and it’s not too expensive for it’s functionality, however, even a beginner like me began to realise it’s limitiations soon enough. FF and slo mo speeds 5X max only, no batch treatment of clips, cannot add external music track (options only tracks available in software and voice recording) And last but not I worked on it for 2 sittings of about 7 hours each and it worked fine until suddenly it crashed for some unknown reason. after 3 consecutive crashes, I still haven’t managed to open it. not good :(

goojeetoo about Filmora Video Editor, v6.5.0