how to open my broen pvc balcony door?

I tried to close my balcony pvc door normally.uNFORTUNATELLY WHILE DOING THAT I have hearda cracking noice from the inside of the door.then i turned the handle again to check if i have broken smth.Now the handle keeps on turning in every direction but the door wont open.It just stays closed and it wont responde on the handle.The door is pvc double glass and i cant find any way to open it myself either from in or outside.The panel is not removable.what shall i do?