https://www.privacytools.io/providers/vpn/
A user mentioned the issue in this forum thread. It happens on our completly ad free website. Affected VPN Providers: ExpressVPN and OVPN.com. uBlock Origin is removing these entries as port of cosmetic filtering, so I'm not quiet sure if its a filter issue.

Default settings
What filter lists are enabled in uBo ? I cannot reproduce the issue.
Open the logger and see what filters are triggered and from what list.
I can reproduce. The bad filters are ##[href*=".expressvpn.com"] and ##[href*=".ovpn.com"] from Fanboy鈥檚 Enhanced Tracking List
report here
https://github.com/ryanbr/fanboy-adblock/issues
@ryanbr
Most helpful comment
report here
https://github.com/ryanbr/fanboy-adblock/issues
@ryanbr