Blank front page

I would like to ask you about my website.
If I upload the template "eSport quickstart" to this website throuth quickstart - all is OK only about three days. After three days the front page of this website is blank but the back-end administration is OK. My setting are following:
Joomla 2.5.7
PHP 5.3
MYSQL 5.1
Thank you for your help

Before the front-end stop working you don't install any extension or publish new modules ? Please try to unpublish modules one by one if this will not resolve your problem please attach here your Joomla! and server error logs.

Before the front-end stop working you don't install any extension or publish new modules ? Please try to unpublish modules one by one if this will not resolve your problem please attach here your Joomla! and server error logs.

Hi bkrztuk,

my front-end again stop working. I don't install any extension or publish new modules. Access log include IP 194.44.45.67 (website is probably hacking?). I can send you my access FTP and Joomla administration.

Thank you for your help

Please send me details via PM with link to this forum topic, I'll check the error logs maybe there we can find more informations.