Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in /is/htdocs/wp1011371_QDL29JJ5F2/www/lib/classes/Produkte/Helpers.php:389 Stack trace: #0 /is/htdocs/wp1011371_QDL29JJ5F2/www/lib/classes/Produkte/Helpers.php(389): in_array('EDU 36353', NULL) #1 /is/htdocs/wp1011371_QDL29JJ5F2/www/lib/classes/Produkte/Liste.php(227): Produkte_Helpers->buttonMerkzettel('1', 'EDU 36353') #2 /is/htdocs/wp1011371_QDL29JJ5F2/www/lib/classes/Produkte/Liste.php(148): Produkte_Liste->produktListeArtikel() #3 /is/htdocs/wp1011371_QDL29JJ5F2/www/includes/suche/suche.php(240): Produkte_Liste->produktListe() #4 /is/htdocs/wp1011371_QDL29JJ5F2/www/index.php(110): include('/is/htdocs/wp10...') #5 {main} thrown in /is/htdocs/wp1011371_QDL29JJ5F2/www/lib/classes/Produkte/Helpers.php on line 389