From ParadiseLand-BETA-1.3.0 and subsequent versions, the plugin attempts to automatically upgrade all configuration files and the local world database. For older versions, you need to delete the generated worlds and the plugin configuration files.
Common questions
Does ParadiseLand break my existing worlds? No, unlike other generation plugins, ParadiseLand doesn't alter the server behavior or any world save files.
Can ParadiseLand load at runtime with Plugman? NO! You shouldn't even consider it!