Needs fixing

Okay so this app was easy to use but after I added some videos and music I wanted to watch it but when I clicked the play button it kept on crashing! After a couple more attempts it finally played! This happened a few times after but then I finished and tried to export to my album, but it kept on crashing! I deleted picture and apps but it still isnt downloading! This is frustrating after I put so much effort in my video! Please fix this! Thank you!

HerpAderp34 about Cute CUT Pro, v1.8.2