Object reference not set to an instance of an object.

at (Object )
at KCKgLskW4h86k0Q7y99.R2hk5cuPqv(Object , KCKgLskW4h86k0Q7y99 )
at MT4APIGD.MainWindow.mHfKpwjOG8()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()