1 exception(s):
Exception #0 (Magento\Framework\Exception\NoSuchEntityException): No such entity with id = 21

Exception #0 (Magento\Framework\Exception\NoSuchEntityException): No such entity with id = 21
<pre>#1 Magento\Catalog\Model\CategoryRepository->get(21, 1) called at [app/code/Manadev/LayeredNavigation/FilterTemplates/Category/TextSingleSelect.php:81]
#2 Manadev\LayeredNavigation\FilterTemplates\Category\TextSingleSelect->prepare(&Manadev\ProductCollection\Resources\Collections\FullTextProductCollection\Interceptor#000000002af144220000000012492a42#, &Manadev\LayeredNavigation\Models\Filter#000000002af145be0000000012492a42#) called at [app/code/Manadev/LayeredNavigation/EngineFilter.php:68]
#3 Manadev\LayeredNavigation\EngineFilter->prepare() called at [app/code/Manadev/LayeredNavigation/Engine.php:117]
#4 Manadev\LayeredNavigation\Engine->prepareFiltersToShowIn('show_in_main_sid...', true, array()) called at [app/code/Manadev/LayeredNavigation/Blocks/Navigation.php:96]
#5 Manadev\LayeredNavigation\Blocks\Navigation->Manadev\LayeredNavigation\Blocks\{closure}() called at [app/code/Manadev/Core/Helpers/LayoutHelper.php:18]
#6 Manadev\Core\Helpers\LayoutHelper->executeAfterLayoutLoadedCallbacks() called at [app/code/Manadev/Core/Observers/ExecuteAfterLayoutLoadedCallbacks.php:25]
#7 Manadev\Core\Observers\ExecuteAfterLayoutLoadedCallbacks->execute(&Magento\Framework\Event\Observer#000000002af1441b0000000012492a42#) called at [vendor/magento/framework/Event/Invoker/InvokerDefault.php:88]
#8 Magento\Framework\Event\Invoker\InvokerDefault->_callObserverMethod(&Manadev\Core\Observers\ExecuteAfterLayoutLoadedCallbacks#000000002af144600000000012492a42#, &Magento\Framework\Event\Observer#000000002af1441b0000000012492a42#) called at [vendor/magento/framework/Event/Invoker/InvokerDefault.php:74]
#9 Magento\Framework\Event\Invoker\InvokerDefault->dispatch(array('instance' => 'Manadev\Core\Obs...', 'name' => 'executeAfterLayo...'), &Magento\Framework\Event\Observer#000000002af1441b0000000012492a42#) called at [vendor/magento/framework/Event/Manager.php:66]
#10 Magento\Framework\Event\Manager->dispatch('layout_generate_...', array('full_action_name' => 'catalog_category...', 'layout' => &Magento\Framework\View\Layout\Interceptor#000000002af1409c0000000012492a42#)) called at [generated/code/Magento/Framework/Event/Manager/Proxy.php:95]
#11 Magento\Framework\Event\Manager\Proxy->dispatch('layout_generate_...', array('full_action_name' => 'catalog_category...', 'layout' => &Magento\Framework\View\Layout\Interceptor#000000002af1409c0000000012492a42#)) called at [vendor/magento/framework/View/Layout/Builder.php:134]
#12 Magento\Framework\View\Layout\Builder->generateLayoutBlocks() called at [vendor/magento/framework/View/Page/Builder.php:55]
#13 Magento\Framework\View\Page\Builder->generateLayoutBlocks() called at [vendor/magento/framework/View/Layout/Builder.php:65]
#14 Magento\Framework\View\Layout\Builder->build() called at [vendor/magento/framework/View/Page/Config.php:211]
#15 Magento\Framework\View\Page\Config->build() called at [vendor/magento/framework/View/Page/Config.php:574]
#16 Magento\Framework\View\Page\Config->getElementAttribute('body', 'class') called at [vendor/magento/framework/View/Page/Config.php:532]
#17 Magento\Framework\View\Page\Config->addBodyClass('page-products') called at [vendor/magento/module-catalog/Controller/Category/View.php:217]
#18 Magento\Catalog\Controller\Category\View->execute() called at [vendor/magento/framework/App/Action/Action.php:108]
#19 Magento\Framework\App\Action\Action->dispatch(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/framework/Interception/Interceptor.php:58]
#20 Magento\Catalog\Controller\Category\View\Interceptor->___callParent('dispatch', array(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#)) called at [vendor/magento/framework/Interception/Interceptor.php:138]
#21 Magento\Catalog\Controller\Category\View\Interceptor->Magento\Framework\Interception\{closure}(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/framework/Interception/Interceptor.php:153]
#22 Magento\Catalog\Controller\Category\View\Interceptor->___callPlugins('dispatch', array(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#), array(array('designLoader', 'customerNotifica...', 'catalog_app_acti...', 'tax-app-action-d...', 'weee-app-action-...', 'storeCheck', 'contextPlugin', 'customer-app-act...'))) called at [generated/code/Magento/Catalog/Controller/Category/View/Interceptor.php:26]
#23 Magento\Catalog\Controller\Category\View\Interceptor->dispatch(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/framework/App/FrontController.php:159]
#24 Magento\Framework\App\FrontController->processRequest(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#, &Magento\Catalog\Controller\Category\View\Interceptor#000000002af141900000000012492a42#) called at [vendor/magento/framework/App/FrontController.php:99]
#25 Magento\Framework\App\FrontController->dispatch(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/framework/Interception/Interceptor.php:58]
#26 Magento\Framework\App\FrontController\Interceptor->___callParent('dispatch', array(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#)) called at [vendor/magento/framework/Interception/Interceptor.php:138]
#27 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/module-store/App/FrontController/Plugin/RequestPreprocessor.php:94]
#28 Magento\Store\App\FrontController\Plugin\RequestPreprocessor->aroundDispatch(&Magento\Framework\App\FrontController\Interceptor#000000002af167890000000012492a42#, &Closure#000000002af167ee0000000012492a42#, &Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/framework/Interception/Interceptor.php:135]
#29 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/module-page-cache/Model/App/FrontController/BuiltinPlugin.php:73]
#30 Magento\PageCache\Model\App\FrontController\BuiltinPlugin->aroundDispatch(&Magento\Framework\App\FrontController\Interceptor#000000002af167890000000012492a42#, &Closure#000000002af167ee0000000012492a42#, &Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/framework/Interception/Interceptor.php:135]
#31 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/framework/Interception/Interceptor.php:153]
#32 Magento\Framework\App\FrontController\Interceptor->___callPlugins('dispatch', array(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#), array(array('mstCoreDispatch'))) called at [generated/code/Magento/Framework/App/FrontController/Interceptor.php:26]
#33 Magento\Framework\App\FrontController\Interceptor->dispatch(&Magento\Framework\App\Request\Http#000000002af166e40000000012492a42#) called at [vendor/magento/framework/App/Http.php:137]
#34 Magento\Framework\App\Http->launch() called at [vendor/magento/framework/App/Bootstrap.php:261]
#35 Magento\Framework\App\Bootstrap->run(&Magento\Framework\App\Http\Interceptor#000000002af1660f0000000012492a42#) called at [index.php:50]
</pre>