[TYPO3-timtab] Problem with Trackback

[Michael Janssen]

Hi,

i'm playing around with timtab, but i've got a problem with the 
trackback. When I'm saving a Blog-Post with an Trackback-Url, i get the 
following error:

Fatal error: Call to a member function on a non-object in 
/../typo3conf/ext/timtab/class.tx_timtab_trackback.php on line 340

Line 340: $link = 
$this->pObj->cObj->getTypoLink_URL($this->conf['blogPid'], $urlParameters);
Line 341: return t3lib_div::getIndpEnv('TYPO3_SITE_URL').$link;

Versions:
TYPO3 4.1.1
timtab 0.5.11

Can somebody help me?

Wishes,

Michael