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java.lang.IllegalStateException: Not a JSON Object: null	at com.google.gson.JsonElement.getAsJsonObject(JsonElement.java:90)	at me.gnat008.perworldinventory.data.FileWriter.getFromDatabase(FileWriter.java:145)	at me.gnat008.perworldinventory.data.players.PWIPlayerManager.getPlayerData(PWIPlayerManager.java:155)	at me.gnat008.perworldinventory.process.GameModeChangeProcess.processGameModeChange(GameModeChangeProcess.java:58)	at me.gnat008.perworldinventory.listeners.player.PlayerGameModeChangeListener.onPlayerGameModeChange(PlayerGameModeChangeListener.java:39)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)