Why does my android phone not let me send videos on social media apps?

[LotusFire 1]

My LG Rebel 4 phone isn't letting me send any video snaps, any videos through messages on snap, same thing for instagram. When I try sending a video on either the app crashes forever until I clear the cache and data on the app. Please help.

 

[B. Diddy]

Welcome to Android Central! Do you get an error message? How much free internal storage do you have?