Script was working fine, now it's not!

[Graveworm]

Script URL:http://www.go2halkidiki.net/ccount/index.php
Version of script: Latest
Hosting company: 3ix
URL of phpinfo.php:
URL of session_test.php:
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Write your message below:
Hi,
The script has been working fine now for about 3 weeks, no problems at all until today. It was working ok this morning, I've been out all day, so no changes anywhere, came home tonight to check, did a refresh and now all I get is "(none) 79.130.169.185 /ccount/index.php Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1 500"
I've been on to the hosting tech support, they tell me it's a script issue and not a server issue, but as nothing has changed in the script I can't see why this is happening. Any help would be greatly appreciated.

Thanks.

[Klemen]

Seems to be working fine...

http://www.go2halkidiki.net/ccount/click.php?id=1