HkMsg error in FLHook plugin

this error is totaly bugin me and i dont see the cause of it

EXPORT void __stdcall Login_AFTER(struct SLoginInfo const &li, unsigned int iClientID)
	{
		wstring wscCharname = ToLower(Players.GetActiveCharacterName(iClientID));
        HkMsg(wscCharname, L"hello");
	}

Error: Exception in plugin test-HkIServerImpl::Login_AFTER

the thing is is shows so its doing what it should