diff --git a/src/main/java/ga/ganma/foofledrive/bukkitRunnable/Runnable.java b/src/main/java/ga/ganma/foofledrive/bukkitRunnable/Runnable.java
index 67254df..2e38f3c 100644
--- a/src/main/java/ga/ganma/foofledrive/bukkitRunnable/Runnable.java
+++ b/src/main/java/ga/ganma/foofledrive/bukkitRunnable/Runnable.java
@@ -16,22 +16,31 @@ public Runnable(Plugin pl) {
 		plugin = pl;
 	}
 
-	@Override
-	public void run() {
-		String FS = File.separator;
-		File folder = new File(plugin.getDataFolder() + FS + "playerdata");
-		if (folder.exists()) {
-			File[] list = folder.listFiles();
-			if (list != null) {
-				for (File f : list) {
-					String name = f.getName();
-					name = name.substring(0, name.lastIndexOf('.'));
-					UUID id = UUID.fromString(name);
-					OfflinePlayer pl = Bukkit.getOfflinePlayer(id);
-					Economy.paymoney(pl);
-				}
-
-			}
-		}
-	}
+	@Override
+	public void run() {
+		String FS = File.separator;
+		File folder = new File(plugin.getDataFolder() + FS + "playerdata");
+		if (folder.exists()) {
+			File[] list = folder.listFiles();
+			if (list != null) {
+				for (File f : list) {
+					try {
+						String name = f.getName();
+						int ext = name.lastIndexOf('.');
+						if (ext <= 0) {
+							continue;
+						}
+						name = name.substring(0, ext);
+						UUID id = UUID.fromString(name);
+						OfflinePlayer pl = Bukkit.getOfflinePlayer(id);
+						Economy.paymoney(pl);
+					}
+					catch (IllegalArgumentException e) {
+						plugin.getLogger().warning("playerdataフォルダに不正なファイル名のデータがあります。");
+					}
+				}
+
+			}
+		}
+	}
 }
diff --git a/src/main/java/ga/ganma/foofledrive/economy/Economy.java b/src/main/java/ga/ganma/foofledrive/economy/Economy.java
index ac15e4a..67380f0 100644
--- a/src/main/java/ga/ganma/foofledrive/economy/Economy.java
+++ b/src/main/java/ga/ganma/foofledrive/economy/Economy.java
@@ -83,12 +83,15 @@ public static void paymoney(Player p) {
 		}
 	}
 
-	public static void paymoney(OfflinePlayer p) {
-		Playerdata pd = Filerelation.readFile(p);
-		if (p != null){
-			double bal = Foofledrive.econ.getBalance(p);
-			if (pd.getFinish() != null) {
-				if (pd.getFinish().before(Calendar.getInstance())) {
+	public static void paymoney(OfflinePlayer p) {
+		if (p == null || Foofledrive.econ == null) {
+			return;
+		}
+		Playerdata pd = Filerelation.readFile(p);
+		if (pd != null){
+			double bal = Foofledrive.econ.getBalance(p);
+			if (pd.getFinish() != null) {
+				if (pd.getFinish().before(Calendar.getInstance())) {
 					int[] amout = Foofledrive.configamout;
 					switch (pd.getPlan()) {
 						case LIGHT:
@@ -174,4 +177,4 @@ public static int getplanmoney(plan plan){
 
 		return 0;
 	}
-}
\ No newline at end of file
+}