Hello,
I have the same problem with one of my servers.
I had a problem and I decided to restart the stats about this server.
Now i have all time 14/0 (or X/0) instead of 14/14.
I already used the visible max player command, i tried to delete it, i tried all restart i can, etc.
I have no solution :/
The other servers are OK.
More informations here :
http://meriletfou.fr/hlstatsx/
Thanks if you have a solution !