SL/R230: Roof want open

I have a problem with the opening of the roof.
After the car has been on stand for 8 months I get this problem.
When I press the button to open the roof everything works find until the roof should “unlock” from the front windshield, the right side seem to open, but the left side seem to be stuck, the roof just move maybe a half of a centimetre on the left side and are stuck there, on the right side I can see that the “look hook” has been released.
Anyone have a quick fix on that?
I am on my way to sell the car and replace it with a CLK, so the roof needs to work





