Added command... you can Change now whether the plugin should change bats to halloweenbats now also ingame /togglebatsspawn
And you can enable the constant deletion of halloweenbats in all the worlds if there are remaining halloweenbats
[20:07:18 ERROR]: Could not load 'plugins/Halloween-Bats-1.2.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: Unsupported API version 1.19