[TYPO3] fatal error: extraItemMarkerProcessor() > page-generation/cache problem with access from another domain

[mr.white]

This is my first post for this list (I hope its a proper one), so at the beggining I`d like to say 'Hi' and 'Thanks' for people who run and contribute to typo3 community. 

I have came across a strange behaviour after accessing my freshly developped
site (typo3 4.2) from different domain than the one I developped it under.

When I clear cache for all pages and point my browser to:

1. dev.tempdomain.pl/ - first page shows properly

2. targetdomain.net/ - gives me a rare error:

Fatal error: Call to a member function extraItemMarkerProcessor() on a
non-object in /typo3conf/ext/tt_news/pi/class.tx_ttnews.php on line 1738

(code below)
========================
                // Adds hook for processing of extra item markers
                if
(is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['tt_news']['extraItemMarkerHook'])) {
                       
foreach($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['tt_news']['extraItemMarkerHook'] as $_classRef) {
                                $_procObj = &
t3lib_div::getUserObj($_classRef);
                                $markerArray =
$_procObj->extraItemMarkerProcessor($markerArray, $row, $lConf, $this);
                        }
                }
========================

when I:
- clear cache,
- access page form 1st domain (which shows up properly),
- access page from 2nd domain - main page also shows up properly.
Just as if it is being loaded from cache.



Strange thing happens also with some of extensions @2nd domain ie.:

newloginbox - it doesn`t load text from translation file - what takes place
with access from 1st domain

sr_feuser_register  - shows:
"Internal error in sr_feuser_register.
Maybe you forgot to include the basic template file under statics from
extensions."

on the page where plugin displays registration link when accessed from 1st
domain.


I noticed now, that ADMIN PANEL has no text @2 domain (while showing them
@1)


Any ideas what is causing this error?

Thanks in advance,
Jerzy