Gnome Looking for Adoption, Felt and Fleece

Fatal error: Uncaught Error: Call to a member function setAddress() on null in /home/bmystic/public_html/addons/combined/library/Ppb/Model/Shipping.php:1553 Stack trace: #0 /home/bmystic/public_html/addons/combined/library/Ppb/Model/Shipping.php(1213): Ppb\Model\Shipping->getStorePickupLocations() #1 /home/bmystic/public_html/module/Listings/src/Listings/View/Helper/Listing.php(828): Ppb\Model\Shipping->calculatePostage() #2 /home/bmystic/public_html/module/Listings/view/listings/listing/details.phtml(279): Listings\View\Helper\Listing->defaultPostage(Object(Ppb\Model\Shipping)) #3 /home/bmystic/public_html/library/Cube/View.php(688): include('/home/bmystic/p...') #4 /home/bmystic/public_html/library/Cube/Controller/Dispatcher.php(126): Cube\View->process(Object(Ppb\Db\Table\Row\ListingMedia)) #5 /home/bmystic/public_html/library/Cube/Controller/Front.php(401): Cube\Controller\Dispatcher->dispatch(Object(Cube\Controller\Request\Rewrite), Object(Cube\Http\Response)) #6 /home/bmystic/public_html/library/Cube/Application/Bootstrap.php(233): Cube\Controller\Front->dispatch() #7 /home/bmystic/public_html/library/Cube/Application.php(254): Cube\Application\Bootstrap->run() #8 /home/bmystic/public_html/index.php(17): Cube\Application->run() #9 {main} thrown in /home/bmystic/public_html/addons/combined/library/Ppb/Model/Shipping.php on line 1553