206+ engine over oil leaks or sweating

I have a 2012 model 206+ petrol vehicle. There is something like oil sweating on the bottom of the screw on the top cover of the engine. The master gasket will change, he said. The oil change of the vehicle has arrived. I wonder if I change the gasket, would it be a problem if the engine was opened when selling the gluttonous gun? Mustang392020-05-13 00:38:11

The rocker you call gasket is probably the cover gasket. Replace nothing. is holding two screws already. Get original only. Aftermarket gasket seals again after 1 year.

There is a Walla photo but I couldn't add it here. From where it is added.