[Typo3] tt_products shop and password protected pages

[Mathias Schreiber [wmdb>]]

Harry Jung wrote:
> Is this a bug in the tt_products or TYPO3 Version OR do i have to make 
> any other fine-tuning to get this running ??
> 
> Any help is very appreciated !

The error seems to come from a messy 3.5 install.
We had something like that too but lateron updated to 3.6 and then to 
3.7 and have no hassle since then.
Consider updating

-- 
if ($GLOBALS['TSFE']->fe_user->user['ahnung'] == 0) {
	$this->fresseHalten = 1;
}