The Drunken Lizard Pub

I need some help here.
When I try to take the ship (boat) at the lighthouse, it says it's not the right time (or something similar).
Do you know what have I to do?

Thanks for your help.

You have to search the forums to find the answer that basiliskwrangler has already posted. 8>. Basically come back in January (iffin he's fixed all the bugs by then).