Since the last topic I replied was left a smart comment and was then closed by a moderator, Gerry.
Hosted servers dont guarantee uptime, thats why AWS has availability zones. Which you dont have within the EU from the looks of it. And clearly there is an issue with the specifications of those servers also given the amount of complaints on here about connecting to devices using your app.
I've first hand been unable to access Sonoff devices constantly over the past two months. This is an issue, you can laugh it off or ignore it but it exists. And if that is the attitude then good luck getting repeat business or good online reviews of your product.