Not able to browse a particular site through squid proxy

[GSRRGS]

Hi,

I have squid-2.5.STABLE7 installed on RHL7.3 configured in transparent mode. All the HTTP requests are going through this squid machine. One day a customer complained that one particular website is no opening. I checked and found that if I stop proxy server and bypass all the HTTP request direct to the Internet than I can browse that particular site, but when I start proxy and pass all the HTTP traffic through this squid machine, then I am not able to browse this particular site. In the squid losg file I get following error message:

1128304093.024 239709 202.52.245.139 TCP_MISS/504 1044 GET

http://www.bebs.edu.np/favicon.ico

- NONE/- -

1128304095.151 239276 202.52.245.139 TCP_MISS/504 1052 GET

http://www.bebs.edu.np/facilities.html

- NONE/- -

If anyone can help me out in this.

thnx in advance