Hello. I bought the game with Steam and installed it on one of my computers without problems. Nice game. But trying to install it on another comp with the same steam account I’m getting the message “Troubles with installing FTL (No connection to content server)”. Please help. Steam support remains silent

I tried to copy the folder FTL faster than light from one comp to another, but launching ftlgame.exe leads to installation attempt with the same failure.