Creating a server with a non-standard map (Quake 3 Arena)

Help, how to start a server with a non-standard card ???

I did this, downloaded the map, dropped it into the Baseq3 folder, then went into the game, in the console I write map "map name", the map is loaded, I add bots from the game, and leave 1 space for a person who will enter via lan.
He enters the game, sees my server, starts to connect, the download window appears and throws it out (at the same time, he also has this card), in the console I see that he connects and immediately disconnects, what's the problem?