Woah! New bug! Now what the hell is this? I started Blockland, joined a server, played a while, disconnected, started a singleplayer server on Slate, started loading bricks and boom.

After I got that error I checked the console running at background. I made the console worried! Scary stuff.
Object JeepVehicle(974) JeepVehicle -> WheeledVehicleData -> VehicleData -> ShapeBaseData -> GameBaseData -> SimDataBlock -> SimObject
base/server/scripts/allGameScripts.cs (20329): Unknown command onLoadPlant.
Object JeepVehicle(974) JeepVehicle -> WheeledVehicleData -> VehicleData -> ShapeBaseData -> GameBaseData -> SimDataBlock -> SimObject
base/server/scripts/allGameScripts.cs (20189): Unknown command onAdd.
Object HorseDebris(914) HorseDebris -> DebrisData -> GameBaseData -> SimDataBlock -> SimObject
base/server/scripts/allGameScripts.cs (20370): Unknown command onTrustCheckFinished.
Object HorseDebris(914) HorseDebris -> DebrisData -> GameBaseData -> SimDataBlock -> SimObject
octTree::insertBrick - maxed out re-rooting tree!
octTree::insertBrick - octTree is probably busted now!
octTree::insertBrick - this is really bad!
The octagon tree has fallen!