Remove Profile Tab

I’ve been trying to remove the Profile tab from a Webinar CPT I created. I’ve added the following code:

add_filter('geodir_detail_page_tab_list_extend', 'geodir_detail_page_tab_list_extend') ;

	
function geodir_detail_page_tab_list_extend($tab_array) {
	if ( 'gd_webinars' == get_post_type() ) {
     		if(isset($tab_array['post_profile'])){
		 	unset($tab_array['post_profile']);//unset in old one
	 	}
     		if(isset($tab_array['post_info'])){
         	$new_tab_array['post_info'] = $tab_array['post_info'];// set in new array
         	$new_tab_array['post_info']['is_active_tab']='1';
		 	unset($tab_array['post_info']);//unset in old one
	 	}    

		// now we set any remaining tabs that have not been assigned an order
		foreach($tab_array as $key=>$tab){
		$new_tab_array[$key]=$tab;
		}	

		return $new_tab_array ;
	}
	return;	
}

It works great on the webinar page http://utilitymarketconnections.com/webinar/airlink-raven-rv50-product-introduction-webinar/ but the other CPTs I’ve added are now getting an error message. http://utilitymarketconnections.com/service-providers/meter-data-management-mdm/accelerated-innovations/

Any suggestions?