Fix rankup and prestige events

src/main/java/sh/okx/rankup/RankupPlugin.java

@@ -138,9 +138,9 @@ public class RankupPlugin extends JavaPlugin {
               () -> config.getString("confirmation-type", "unknown")));
       metrics.addCustomChart(new Metrics.AdvancedPie("requirements", () -> {
         Map<String, Integer> map = new HashMap<>();
-        addAll(map, rankups);
+        addAllRequirements(map, rankups);
         if (prestiges != null) {
-          addAll(map, prestiges);
+          addAllRequirements(map, prestiges);
         }
         return map;
       }));
@@ -262,7 +262,7 @@ public class RankupPlugin extends JavaPlugin {
     return true;
   }
 
-  private void addAll(Map<String, Integer> map, RankList<? extends Rank> ranks) {
+  private void addAllRequirements(Map<String, Integer> map, RankList<? extends Rank> ranks) {
     for (Rank rank : ranks.getTree()) {
       for (Requirement requirement : rank.getRequirements().getRequirements(null)) {
         String name = requirement.getName();

src/main/java/sh/okx/rankup/commands/InfoCommand.java

@@ -131,7 +131,7 @@ public class InfoCommand implements TabExecutor {
         }
         Rank currentRank = currentRankElement.getRank();
 
-        if (plugin.getRankups().getFirst().equals(currentRank)) {
+        if (currentRankElement.isRootNode()) {
           sender.sendMessage(ChatColor.YELLOW + "That player is in the first rank and cannot be ranked down.");
           return true;
         }

src/main/java/sh/okx/rankup/events/PlayerPrestigeEvent.java

@@ -33,4 +33,8 @@ public class PlayerPrestigeEvent extends PlayerEvent {
   public HandlerList getHandlers() {
     return handlers;
   }
+
+  public static HandlerList getHandlerList() {
+    return handlers;
+  }
 }

src/main/java/sh/okx/rankup/events/PlayerRankupEvent.java

@@ -33,4 +33,8 @@ public class PlayerRankupEvent extends PlayerEvent {
   public HandlerList getHandlers() {
     return handlers;
   }
+
+  public static HandlerList getHandlerList() {
+    return handlers;
+  }
 }