2013 Land Rover Range Rover Sport tailgate is stuck closed

Hello! My 2013 Range Rover Sport tailgate is stuck in the closed position. The tailgate lift support has gotten off somehow and will not open. Any idea how to get it open and fix it? Thank you!

Not being able to look at it or know what is causing it, I would suggest to drop by a body shop. They have bigger hammers and crowbars and might be able to do it right on the spot… but not for free.