So me and my friend were playing on a world when he died on the "snow" biome but I didn't so I decided to go back and get him with our large ship that was completed after 72H of hard work so I turn the ship around to go back to our spawn island when my character falls off the boat for no apparent reason so I try to swim as fast as possible but die from the cold water because the boat was sailing when I fell off, so I respawn on the spawn island aswell and decided I wanted to find the ship so I opened the world in the editor and tried to find it. Unfortunately, I didn't so I decided to go on and build it again but when my friend tried to join the "thumbnail" for the server was grayed out and said "Unavailable" what should we do?
