Fix error messages

Signed-off-by: Lixfel <agga-games@gmx.de>

src/de/steamwar/bungeecore/sql/SteamwarUser.java

@@ -64,7 +64,7 @@ public class SteamwarUser {
             }
         }else{
             SQL.update("INSERT INTO UserData (UUID, UserName, UserGroup) VALUES (?, ?, 'Member')", connection.getUniqueId().toString(), connection.getName());
-            user = dbInit(SQL.select("SELECT * FROM UserData WHERE UUID = ?", connection.getUniqueId()));
+            user = dbInit(SQL.select("SELECT * FROM UserData WHERE UUID = ?", connection.getUniqueId().toString()));
             if(user == null)
                 throw new SecurityException("user == null");
         }