I want to cancel my PicsArt subscription

I want to cancel my subscription and get the thing saying renew off my thing, I can’t do anything with picart I use it all the time for groups that I’m in I make grapics and it will not let me save anything at all it keep popping up with continue subscription and I don’t want to continue at this time so how do I remove gold off so I can use it

[Re-Titled by Moderator]