Anjokay

Hi Herbie, I'm having problems opening and closing my tailgate. I opened it with the fob this morning but to my surprise the gate refused to lock back so I hard to force it to close and ever since then I've tried couple of times to reopen it but there was no joy. There is always a beep sounds each time I attempt to open it. Please I need informatiom to resolve this problem. Cheers Kay.