Errores File does not exist

[Copp]

Buenas.

Esta noche cayo mi servidor web y me ha dado por mirar el archivo error_log de apache, y veo esto:

[Sat Nov 13 01:27:07 2010] [error] [client 83.60.127.179] File does not exist: /home/pesoccer/www/descargar, referer: http://www.pesoccerworld.com/descarg...peka-3498.html
[Sat Nov 13 01:27:08 2010] [error] [client 83.60.127.179] File does not exist: /home/pesoccer/www/descargar, referer: http://www.pesoccerworld.com/descarg...peka-3498.html
[Sat Nov 13 01:27:08 2010] [error] [client 89.130.161.192] File does not exist: /home/pesoccer/www/descargas, referer: http://www.pesoccerworld.com/descarg...adios-724.html
[Sat Nov 13 01:27:08 2010] [error] [client 200.12.205.26] File does not exist: /home/pesoccer/www/descargas, referer: http://www.pesoccerworld.com/descarg...tin+11-11-2010
[Sat Nov 13 01:27:10 2010] [error] [client 89.130.161.192] File does not exist: /home/pesoccer/www/descargas, referer: http://www.pesoccerworld.com/descarg...adios-724.html
[Sat Nov 13 01:27:11 2010] [error] [client 190.164.0.69] File does not exist: /home/pesoccer/www/foro/{http:, referer: http://www.pesoccerworld.com/foro/viewforum.php?f=306
[Sat Nov 13 01:27:14 2010] [error] [client 190.50.190.81] File does not exist: /home/pesoccer/www/foro/{http:, referer: http://www.pesoccerworld.com/foro/vi...960&start=2580
[Sat Nov 13 01:27:21 2010] [error] [client 186.57.31.80] File does not exist: /home/pesoccer/www/descargas, referer: http://www.pesoccerworld.com/descarg...Caras-720.html
[Sat Nov 13 01:27:26 2010] [error] [client 186.57.31.80] File does not exist: /home/pesoccer/www/descargas, referer: http://www.pesoccerworld.com/descarg...Caras-720.html
[Sat Nov 13 01:27:29 2010] [error] [client 88.189.163.141] File does not exist: /home/pesoccer/www/foro/images/ranks/StadiumMakers.gif, referer: http://www.pesoccerworld.com/foro/vi...9048&start=585
[Sat Nov 13 01:27:30 2010] [error] [client 200.127.121.211] File does not exist: /home/pesoccer/www/descargar, referer: http://www.pesoccerworld.com/descarg...1_V3-3497.html

Porque salen los mensajes "File does not exist" ?? Todas las direcciones funcionan. Si yo entro ahora a cualquier zona de la web, aparece una entrada asi como error.