@mario99g What countries (regions) have that problem? Why they just don't say that free plan has limitation now (Opera team)?! I can connect through FF (firefox) VPN extension and also with Ex...VPN, but nothing work in Opera VPN!

@leocg
I had a test on mobile network with Opera Mobile (latest version) and as I realized the problem is from Opera side (proxies or bypassing servers) not client side or regional! Opera VPN would not connect neither using VPN app or without VPN app (here I am using ExpressVPN connecting to German server then open Opera Mobile but there is problem to connect to Opera VPN servers! By disabling Opera VPN, I can reach YouTube and other sites that are censored here in Iran...). I don't think the problem be regional specifically about Iran!
I have "VPN is temporarily..." error about one week now on Desktop and Mobile with Opera...