Fixed NPE with Start flight method

src/main/java/com/massivecraft/factions/SavageFactions.java

@@ -58,7 +58,8 @@ public class SavageFactions extends MPlugin {
 	// a green light to use the api.
 	public static boolean startupFinished = false;
 
-
+	// Persistence related
+	public static ArrayList<FPlayer> playersFlying = new ArrayList();
 
 	public boolean PlaceholderApi;
 	// Commands
@@ -185,6 +186,11 @@ public class SavageFactions extends MPlugin {
 				faction.addFPlayer(fPlayer);
 			}
 		}
+
+		playersFlying.clear();
+		for (FPlayer fPlayer : FPlayers.getInstance().getAllFPlayers()) {
+			playersFlying.add(fPlayer);
+		}
 		UtilFly.run();
 
 		Board.getInstance().load();

src/main/java/com/massivecraft/factions/util/UtilFly.java

@@ -14,14 +14,18 @@ import java.util.Iterator;
 public class UtilFly {
 
 
+	public static ArrayList<FPlayer> playersFlying = SavageFactions.playersFlying;
+
 	public static void run() {
 		if (!SavageFactions.plugin.getConfig().getBoolean("enable-faction-flight"))
 			return;
 
+		playersFlying.clear();
 
 		Bukkit.getScheduler().scheduleSyncRepeatingTask(SavageFactions.plugin, () -> {
-			for (FPlayer fp : FPlayers.getInstance().getAllFPlayers()) {
-				if (fp.isFlying()) fp.checkIfNearbyEnemies();
+			for (FPlayer fp : playersFlying) {
+				if (fp != null)
+					fp.checkIfNearbyEnemies();
 			}
 		}, 0, SavageFactions.plugin.getConfig().getInt("fly-task-interval", 10));
 	}
@@ -34,6 +38,11 @@ public class UtilFly {
 		fp.getPlayer().setFlying(fly);
 		fp.setFlying(fly);
 
+		if (fly) {
+			playersFlying.add(fp);
+		} else {
+			playersFlying.remove(fp);
+		}
 
 		if (!silent) {
 			if (!damage) {
@@ -98,3 +107,4 @@ public class UtilFly {
 }
 
 
+

src/main/java/com/massivecraft/factions/zcore/persist/MemoryFPlayer.java

@@ -1070,6 +1070,7 @@ public abstract class MemoryFPlayer implements FPlayer {
 			if (e == null) {
 				continue;
 			}
+
 			if (e instanceof Player) {
 				Player eplayer = (((Player) e).getPlayer());
 				if (eplayer == null) {