Server "Beaver 7" moved on 1.32 using ioquake code. Beaver 7 had been renamed to QooL7.
IOQuake, as reported in the official homepage, is a
"Free Software FPS Game Engine Based on Quake 3 for Windows, Linux, and macOS".
My suggest is play using ioquake. A lot of improvements done since ID Software release the source code as open.
To connect to the QooL server you can write the command
or just browse the server using the quake 3 client.
Come and get some frags!