[2022] Launcher has 'Game runtime communication error'

No real ideas here, sorry. Does your firewall record having blocked the game or our launcher?  

You may have firewalls in your internet modem/router, even at your ISP. How did you bypass, with a VPN perhaps?

Do you have any other computers you can test this on, whether in the same location or elsewhere?

Alternatively can you try this computer in a different location?