Hello,
I just moved my project to the hosting.

I had problem moving it because of PDO.
there was no PDO installed so I asked my hosted and they've installed PDO.
They've installed it and I activated it with php.ini in my freichat, administrator and client
extension=php_pdo.dll
extension=php_pdo_mysql.dll

Now php shows me PDO installed and I cound been able to login administrator.
but soon shared hosting server blocks me, support says I have too much requests.

I deleted all my files and made fresh install with new version. Unfortionatly it does the same

Is this some common mistake? excepts for PDO is there some module it needs to be installed?
Do you need some more information from my phpinfo?

PS. From logs I think /freichat/server/freichat.php is the most requested file as it has 1161 where /freichat/client/main.php has 73

thanks

Also there was some error loading js file
/freichat/administrator/js/jquery.cookie.js
I've read it's a common mistake because of mod_security module installed on PHP
http://stackoverflow.com/questions/7660353/jquery-cookie-not-working

I just renamed to jquery_cookie.js and changed patch in /freichat/administrator/admin.php

the jquery.cookie.js is due to bad configuration of mod_security.
I don't know who your webhost is, but a lot of our clients had similar trouble and the web hosting providers don't seem to care(it seems they all were reselling from the same hosting provider).
it is best to change the host, why be with a host who can't even configure mod_security properly. even CMS such as drupal use jquery.cookie.js . it is complete negligence on the hosting providers part.

you can reduce the no of requests by changing the polling mode to comet in the backend.
and when you switch to comet, there will be 20 requests/min. for 10 online users.

Yes, I had a little argument with my hosting provider and probably I'm moving to other hosting, sadly they don't return my money back ))

I thought comet was more server resource intensive then polling, now It's working much better in terms of performance and server load.