fix: 修复物品Lore为空时的BUG

src/main/java/pw/yumc/MenuProtect/utils/MarkUtil.java

@@ -17,7 +17,7 @@ public class MarkUtil {
     public static Map<String, List<String>> cmds = new HashMap<>();
 
     public static void handlerItemClick(final Player p, final ItemStack is) {
-        if (hasMark(is)) {
+        if (hasMark(is) && is.getItemMeta().hasLore()) {
             for (final String lore : is.getItemMeta().getLore()) {
                 if (cmds.containsKey(lore)) {
                     for (final String cmd : cmds.get(lore)) {