I am new vpn user and I don not have enough information about. I always connect my pc with sstp vpn protocol but when I connect on my smartphone, it shows an error. Why?

Did you contact the support of the vpn provider you are using???

Which VPN you are using?

@noisygirlkk I already contact with support team and they told me that it was not support on your Android phone. But on the other side, I have searched on Goggle and get some guide, in which they mention user can use sstp with other OS like Android.
https://www.purevpn.com/what-is-vpn/protocols/sstp
https://www.cactusvpn.com/beginners-guide-to-vpn/what-is-sstp/

Who is correct? who they deny to support with Android or these guides?

lol what a way to spam ads

Obviously same mastermind behind all these accounts chatting

Than you should change your android phone, which phone you are using and the android version???

Smth similar happened to me, the speeds were different like day and night between my Android and PC, on Android way lower. I was advised to read this and tweak protocols and check server loads