Return of Reckoning

Please help me with this error:
15:47:48 --- LOG STARTING ---
15:47:48 Launcher version: 1.2.0.0
15:47:48
15:47:48
15:47:48 ------------ ERROR MESSAGES BELOW ------------
15:47:48 --- ToString ---
15:47:48 System.InvalidOperationException: Cannot load Counter Name data because an invalid index '' was read from the registry.
at System.Diagnostics.PerformanceCounterLib.GetStringTable(Boolean isHelp)
at System.Diagnostics.PerformanceCounterLib.get_NameTable()
at System.Diagnostics.PerformanceCounterLib.get_CategoryTable()
at System.Diagnostics.PerformanceCounterLib.CounterExists(String category, String counter, Boolean& categoryExists)
at System.Diagnostics.PerformanceCounterLib.CounterExists(String machine, String category, String counter)
at System.Diagnostics.PerformanceCounter.InitializeImpl()
at System.Diagnostics.PerformanceCounter..ctor(String categoryName, String counterName, String instanceName, Boolean readOnly)
at System.Diagnostics.PerformanceCounter..ctor(String categoryName, String counterName, String instanceName)
at MYPHandler.MYPHandler..ctor(String filename, del_FileTableEventHandler eventHandler_FileTable, del_FileEventHandler eventHandler_Extraction, HashDictionary hashDic)
at (String , del_FileTableEventHandler , del_FileEventHandler , HashDictionary )
at 至ⷒ築⡍钓몰饶ꛓ.ˋ壜귯蔴ꠋ祒ㆊ(String 郎㚜殎⦆ꓴ᪱옦謚, del_FileTableEventHandler 郎㚜殎⦆ꓴ᪱옦謚, del_FileEventHandler 郎㚜殎⦆ꓴ᪱옦謚, HashDictionary 郎㚜殎⦆ꓴ᪱옦謚)
at WarLauncher.Client.UpdateWarData()
15:47:48
15:47:48
15:47:48 --- Message ---
15:47:48 Cannot load Counter Name data because an invalid index '' was read from the registry.
15:47:48
15:47:48
15:47:48 --- Source ---
15:47:48 System
15:47:48
15:47:48
15:47:48 --- Data ---
15:47:48 System.Collections.ListDictionaryInternal
15:47:48
15:47:48
15:47:48 --- StackTrace ---
15:47:48 at System.Diagnostics.PerformanceCounterLib.GetStringTable(Boolean isHelp)
at System.Diagnostics.PerformanceCounterLib.get_NameTable()
at System.Diagnostics.PerformanceCounterLib.get_CategoryTable()
at System.Diagnostics.PerformanceCounterLib.CounterExists(String category, S

As Elven suggested to me :

1) Go to start and type in "cmd"

2) Right click cmd and run as administrator.

3) type in "lodctr /r" and press enter.

It should rebuild the performance counters