Update DefaultWorldConfiguration.java

Author: Dev7ex

multiworld-bukkit/src/main/java/com/dev7ex/multiworld/world/DefaultWorldConfiguration.java

@@ -72,7 +72,7 @@ public void add(@NotNull final BukkitWorldHolder worldHolder) {
         super.getFileConfiguration().set(worldHolder.getName() + "." + WorldProperty.SPAWN_ENTITIES.getStoragePath(), worldHolder.isSpawnEntities());
         super.getFileConfiguration().set(worldHolder.getName() + "." + WorldProperty.WEATHER_ENABLED.getStoragePath(), worldHolder.isWeatherEnabled());
 
-        super.getFileConfiguration().set(worldHolder.getName() + "." + WorldProperty.ENVIRONMENT.getStoragePath(), worldHolder.getEnvironment());
+        super.getFileConfiguration().set(worldHolder.getName() + "." + WorldProperty.ENVIRONMENT.getStoragePath(), worldHolder.getEnvironment().toString());
         super.getFileConfiguration().set(worldHolder.getName() + "." + WorldProperty.GENERATOR.getStoragePath(), worldHolder.getGenerator());
         super.getFileConfiguration().set(worldHolder.getName() + "." + WorldProperty.TYPE.getStoragePath(), worldHolder.getType().toString());