It is because of China's internet connection. You can try to reboot pc but anyway Hand2Note needs to install internal modules so you will need to wait a bit.
____________________________________________________________
You must wait until it downloads the update. It may take a while for some of the Chinese users because certain ISP may limit traffic to our servers
____________________________________________________________________________________________________________________________
Servers are online and there are no connection issues on our side. Automatic updates must be downloaded, so if it's stuck, try using a different internet connection like mobile internet or VPN just to start H2N.
____________________________________________________
Наши серверы подключены к сети, и с нашей стороны проблем с подключением нет. Автоматические обновления должны загрузиться, поэтому, если они зависают, попробуйте использовать другое подключение к Интернету, например мобильный Интернет или VPN, чтобы запустить H2N.
________________________________________________________
Try to reboot your router or try using a different internet connection like mobile internet or VPN just to start H2N.
___________________________
Try a different VPN server or a mobile internet to launch it. H2N needs to download the updates to start, after that it should be ok.