Exception #0 (Magento\Framework\Exception\LocalizedException): The attribute model is not defined

Question

When i search on my website with sku below error message appear https://yassupanju.com/index.php/catalogsearch/result/?q=k-614 1 exception(s): Exception #0 (Magento\Framework\Exception\LocalizedException): The attribute model is not defined.

Exception #0 (Magento\Framework\Exception\LocalizedException): The attribute model is not defined.

#1 WeltPixel\LayeredNavigation\Block\Navigation->getActiveFilters() called at [app/code/WeltPixel/LayeredNavigation/view/frontend/templates/layer/view.phtml:41]
#2 include() called at [vendor/magento/framework/View/TemplateEngine/Php.php:71]
#3 Magento\Framework\View\TemplateEngine\Php->render() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#4 Magento\Framework\View\TemplateEngine\Php\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#5 Magento\Framework\View\TemplateEngine\Php\Interceptor->Magento\Framework\Interception\{closure}() called at [app/code/Amasty/Fpc/Plugin/Holepunch/TemplateRenderer.php:58]
#6 Amasty\Fpc\Plugin\Holepunch\TemplateRenderer->aroundRender() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#7 Magento\Framework\View\TemplateEngine\Php\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#8 Magento\Framework\View\TemplateEngine\Php\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/View/TemplateEngine/Php/Interceptor.php:26]
#9 Magento\Framework\View\TemplateEngine\Php\Interceptor->render() called at [vendor/magento/framework/View/Element/Template.php:273]
#10 Magento\Framework\View\Element\Template->fetchView() called at [vendor/magento/framework/View/Element/Template.php:303]
#11 Magento\Framework\View\Element\Template->_toHtml() called at [vendor/magento/framework/View/Element/AbstractBlock.php:1111]
#12 Magento\Framework\View\Element\AbstractBlock->Magento\Framework\View\Element\{closure}() called at [vendor/magento/framework/View/Element/AbstractBlock.php:1115]
#13 Magento\Framework\View\Element\AbstractBlock->_loadCache() called at [vendor/magento/framework/View/Element/AbstractBlock.php:675]
#14 Magento\Framework\View\Element\AbstractBlock->toHtml() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#15 WeltPixel\LayeredNavigation\Block\Navigation\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#16 WeltPixel\LayeredNavigation\Block\Navigation\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#17 WeltPixel\LayeredNavigation\Block\Navigation\Interceptor->___callPlugins() called at [generated/code/WeltPixel/LayeredNavigation/Block/Navigation/Interceptor.php:39]
#18 WeltPixel\LayeredNavigation\Block\Navigation\Interceptor->toHtml() called at [vendor/magento/framework/View/Layout.php:566]
#19 Magento\Framework\View\Layout->_renderBlock() called at [vendor/magento/framework/View/Layout.php:542]
#20 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:206]
#21 Magento\Framework\View\Layout\Interceptor->renderNonCachedElement() called at [vendor/magento/framework/View/Layout.php:497]
#22 Magento\Framework\View\Layout->renderElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:193]
#23 Magento\Framework\View\Layout\Interceptor->renderElement() called at [vendor/magento/framework/View/Layout.php:594]
#24 Magento\Framework\View\Layout->_renderContainer() called at [vendor/magento/framework/View/Layout.php:544]
#25 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:206]
#26 Magento\Framework\View\Layout\Interceptor->renderNonCachedElement() called at [vendor/magento/framework/View/Layout.php:497]
#27 Magento\Framework\View\Layout->renderElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:193]
#28 Magento\Framework\View\Layout\Interceptor->renderElement() called at [vendor/magento/framework/View/Layout.php:594]
#29 Magento\Framework\View\Layout->_renderContainer() called at [vendor/magento/framework/View/Layout.php:544]
#30 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:206]
mework\App\Bootstrap->run() called at [index.php:39]