@gbws still not working. Use the same vpn with another Brower which based on chrome can watch the pornhub video smoothly, I thought there must be something wrong with Opera brower.

same warning : This video is currently unavailable on this site. I used v2ray as VPN and Opera brower cannot watch pornhub video with this warning, YTB video can play well. I switch another brower like chrome has no problem watching video.
Still wandered why.