Problem to access the "book compilation farm"

Dears, I cannot accesses the site: https://ci.inria.fr/pharo-contribution/view/Books/ Is there some problem with the server? Further, I saw serval "strange" messages on the main page of the Pharo forum, http://forum.world.st/Pharo-f1294836.html. Should these messages be removed? Thanks, Matteo.