diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/binary/LauncherBinary.java b/LaunchServer/src/main/java/ru/gravit/launchserver/binary/LauncherBinary.java
index 9ede059a..558e75ec 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/binary/LauncherBinary.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/binary/LauncherBinary.java
@@ -53,7 +53,7 @@ public final byte[] getHash() {
     public final boolean sync() throws IOException {
         boolean exists = exists();
         binary = exists ? new SignedBytesHolder(IOHelper.read(syncBinaryFile), server.privateKey) : null;
-        hash = SecurityHelper.digest(SecurityHelper.DigestAlgorithm.SHA512,IOHelper.newInput(syncBinaryFile));
+        hash = exists ? SecurityHelper.digest(SecurityHelper.DigestAlgorithm.SHA512,IOHelper.newInput(syncBinaryFile)) : null;
         return exists;
     }
 }
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/socket/websocket/json/update/LauncherResponse.java b/LaunchServer/src/main/java/ru/gravit/launchserver/socket/websocket/json/update/LauncherResponse.java
index ee82ef42..b983e9f4 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/socket/websocket/json/update/LauncherResponse.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/socket/websocket/json/update/LauncherResponse.java
@@ -24,16 +24,20 @@ public void execute(WebSocketService service, ChannelHandlerContext ctx, Client
         byte[] bytes = Base64.getDecoder().decode(hash);
         if(launcher_type == 1) // JAR
         {
-            if(Arrays.equals(bytes, LaunchServer.server.launcherBinary.getHash())) //REPLACE REAL HASH
+            byte[] hash = LaunchServer.server.launcherBinary.getHash();
+            if(hash == null) service.sendObjectAndClose(ctx, new Result(true));
+            if(Arrays.equals(bytes, hash)) //REPLACE REAL HASH
             {
                 service.sendObject(ctx, new Result(false));
             } else
             {
                 service.sendObjectAndClose(ctx, new Result(true));
             }
-        } else if(launcher_type == 2)
+        } else if(launcher_type == 2) //EXE
         {
-            if(Arrays.equals(bytes, LaunchServer.server.launcherEXEBinary.getHash())) //REPLACE REAL HASH
+            byte[] hash = LaunchServer.server.launcherEXEBinary.getHash();
+            if(hash == null) service.sendObjectAndClose(ctx, new Result(true));
+            if(Arrays.equals(bytes, hash)) //REPLACE REAL HASH
             {
                 service.sendObject(ctx, new Result(false));
             } else