Please download and install TAP-Win32 adapter via this link:
https://www.dropbox.com/s/x14f0vpag597aox/tap-windows-9.21.2.exe?dl=0
or
https://build.openvpn.net/downloads/releases/tap-windows-9.21.2.exe
Then connect to VPN again
If the problem persists, please send the support the connection log:
Double click the small StreamVPN icon in your system tray (usually the bottom right of your screen) to reveal the log, then select all log text (CTRL-a), copy (Ctrl-c) and paste (Ctrl-v) the complete log details into an email to us.
Still need help? Our support team usually replies the same day.