As of 1.4.0
Anytime @EventHandler(priority = EventPriority.LOWEST) public void onAdjacentInventoryClick(InventoryClickEvent event) is called it will attempt to cast org.bukkit.craftbukkit.entity.CraftPlayer to a com.samjakob.spigui.menu.SGMenu causing errors in the console.
(Temporary fix for this would be to downgrade this function back to version 1.3.1 although you would lose the ability to set specific blockedAdjacentActions)
As of 1.4.0
Anytime
@EventHandler(priority = EventPriority.LOWEST) public void onAdjacentInventoryClick(InventoryClickEvent event)is called it will attempt to castorg.bukkit.craftbukkit.entity.CraftPlayerto acom.samjakob.spigui.menu.SGMenucausing errors in the console.(Temporary fix for this would be to downgrade this function back to version 1.3.1 although you would lose the ability to set specific
blockedAdjacentActions)