Why is my right earbud not working?

Why is my right earbud not working?

I have a pair of JBL E25BT Earbuds, suddenly one day, my right earbud stopped working. There is no warranty on it anymore so i can’t get help from JBL. I have noticed that my volume up volume control is pushed in a little bit. I have tried to pry it out and that didn’t work. I was wondering if there is anyway i can fix it

ANSWERS: