2.3.0Object reference not set to an instance of an object.

at (Object )
at p3f8Is6SDXfKhqg1EsK.x9i63VOlW6(Object , p3f8Is6SDXfKhqg1EsK )
at MT4APIGD.MainWindow.tpK2IMp2Dt()
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()