I have a Samsung Android phone and then are unable to use my video calling now why

[Android Central Question]

I used to be able to use my video call and now I can't why not please help me

 

[B. Diddy]

Welcome to Android Central! Which Samsung phone, and which carrier? Are you talking about video calling through the stock Phone app, or video calling through some other platform (like Google Duo, Skype, etc.)?