[11:07:26] [Server thread/INFO]: [MMOCore] Disabling MMOCore v1.4.3
[11:07:26] [Server thread/ERROR]: Error occurred while disabling MMOCore v1.4.3 (Is it up to date?)
java.lang.IllegalArgumentException: Player must be online
	at org.apache.commons.lang.Validate.notNull(Validate.java:192) ~[patched_1.13.2.jar:git-Paper-655]
	at net.mmogroup.mmolib.api.player.MMOPlayerData.getPlayer(MMOPlayerData.java:79) ~[?:?]
	at net.Indyuce.mmocore.api.player.PlayerData.getPlayer(PlayerData.java:167) ~[?:?]
	at net.Indyuce.mmocore.api.quest.PlayerQuests.resetBossBar(PlayerQuests.java:188) ~[?:?]
	at net.Indyuce.mmocore.MMOCore.onDisable(MMOCore.java:364) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:267) ~[patched_1.13.2.jar:git-Paper-655]
	at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:368) ~[patched_1.13.2.jar:git-Paper-655]
	at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:444) ~[patched_1.13.2.jar:git-Paper-655]
	at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:431) ~[patched_1.13.2.jar:git-Paper-655]
	at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:424) ~[patched_1.13.2.jar:git-Paper-655]
	at org.bukkit.craftbukkit.v1_13_R2.CraftServer.disablePlugins(CraftServer.java:377) ~[patched_1.13.2.jar:git-Paper-655]
	at net.minecraft.server.v1_13_R2.MinecraftServer.stop(MinecraftServer.java:652) ~[patched_1.13.2.jar:git-Paper-655]
	at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:874) ~[patched_1.13.2.jar:git-Paper-655]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_261]