Error: Call to a member function getStoreIds() on null in /var/www/vhosts/staging.1people.com/vendor/mageplaza/magento-2-blog-extension/Block/Adminhtml/Category/Tree.php:178 Stack trace: #0 /var/www/vhosts/staging.1people.com/vendor/magento/module-catalog/Block/Adminhtml/Category/Tree.php(311): Mageplaza\Blog\Block\Adminhtml\Category\Tree->_getNodeJson(NULL) #1 /var/www/vhosts/staging.1people.com/vendor/mageplaza/magento-2-blog-extension/Block/Adminhtml/Category/Tree.php(140): Magento\Catalog\Block\Adminhtml\Category\Tree->getTree(NULL) #2 /var/www/vhosts/staging.1people.com/vendor/mageplaza/magento-2-blog-extension/Block/Category/Widget.php(44): Mageplaza\Blog\Block\Adminhtml\Category\Tree->getTree(NULL, '21') #3 /var/www/vhosts/staging.1people.com/vendor/mageplaza/magento-2-blog-extension/view/frontend/templates/category/widget.phtml(25): Mageplaza\Blog\Block\Category\Widget->getTree() #4 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/TemplateEngine/Php.php(71): include('/var/www/vhosts...') #5 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\TemplateEngine\Php->render(Object(Mageplaza\Blog\Block\Category\Widget), '/var/www/vhosts...', Array) #6 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\TemplateEngine\Php\Interceptor->___callParent('render', Array) #7 /var/www/vhosts/staging.1people.com/vendor/amasty/module-fpc-warmer/Plugin/Holepunch/TemplateRenderer.php(58): Magento\Framework\View\TemplateEngine\Php\Interceptor->Magento\Framework\Interception\{closure}(Object(Mageplaza\Blog\Block\Category\Widget), '/var/www/vhosts...', Array) #8 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(135): Amasty\Fpc\Plugin\Holepunch\TemplateRenderer->aroundRender(Object(Magento\Framework\View\TemplateEngine\Php\Interceptor), Object(Closure), Object(Mageplaza\Blog\Block\Category\Widget), '/var/www/vhosts...', Array) #9 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\TemplateEngine\Php\Interceptor->Magento\Framework\Interception\{closure}(Object(Mageplaza\Blog\Block\Category\Widget), '/var/www/vhosts...', Array) #10 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/TemplateEngine/Php/Interceptor.php(23): Magento\Framework\View\TemplateEngine\Php\Interceptor->___callPlugins('render', Array, Array) #11 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Element/Template.php(273): Magento\Framework\View\TemplateEngine\Php\Interceptor->render(Object(Mageplaza\Blog\Block\Category\Widget), '/var/www/vhosts...', Array) #12 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Element/Template.php(303): Magento\Framework\View\Element\Template->fetchView('/var/www/vhosts...') #13 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Element/AbstractBlock.php(1111): Magento\Framework\View\Element\Template->_toHtml() #14 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Element/AbstractBlock.php(1115): Magento\Framework\View\Element\AbstractBlock->Magento\Framework\View\Element\{closure}() #15 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Element/AbstractBlock.php(675): Magento\Framework\View\Element\AbstractBlock->_loadCache() #16 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(566): Magento\Framework\View\Element\AbstractBlock->toHtml() #17 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(542): Magento\Framework\View\Layout->_renderBlock('mpblog.sidebar....') #18 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('mpblog.sidebar....') #19 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('mpblog.sidebar....') #20 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('mpblog.sidebar....', false) #21 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('mpblog.sidebar....', false) #22 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('blog.sidebar.ma...', false) #23 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('blog.sidebar.ma...') #24 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('blog.sidebar.ma...') #25 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('blog.sidebar.ma...', false) #26 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('blog.sidebar.ma...', false) #27 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('div.sidebar.mai...', false) #28 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('div.sidebar.mai...') #29 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('div.sidebar.mai...') #30 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('div.sidebar.mai...', false) #31 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('div.sidebar.mai...', false) #32 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('columns', false) #33 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('columns') #34 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('columns') #35 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('columns', false) #36 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('columns', false) #37 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('main.content', false) #38 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('main.content') #39 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('main.content') #40 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('main.content', false) #41 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('main.content', false) #42 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('page.wrapper', false) #43 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('page.wrapper') #44 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('page.wrapper') #45 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('page.wrapper', false) #46 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('page.wrapper', false) #47 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('root', false) #48 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('root') #49 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('root') #50 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('root', true) #51 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Layout.php(963): Magento\Framework\View\Layout\Interceptor->renderElement('root') #52 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\Layout->getOutput() #53 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\Layout\Interceptor->___callParent('getOutput', Array) #54 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Layout\Interceptor->Magento\Framework\Interception\{closure}() #55 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Layout/Interceptor.php(347): Magento\Framework\View\Layout\Interceptor->___callPlugins('getOutput', Array, Array) #56 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Result/Page.php(258): Magento\Framework\View\Layout\Interceptor->getOutput() #57 /var/www/vhosts/staging.1people.com/vendor/magento/framework/View/Result/Layout.php(171): Magento\Framework\View\Result\Page->render(Object(Magento\Framework\App\Response\Http\Interceptor)) #58 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\Result\Layout->renderResult(Object(Magento\Framework\App\Response\Http\Interceptor)) #59 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\Result\Page\Interceptor->___callParent('renderResult', Array) #60 /var/www/vhosts/staging.1people.com/vendor/amasty/module-page-speed-tools/Plugin/ProcessPageResult.php(40): Magento\Framework\View\Result\Page\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Response\Http\Interceptor)) #61 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(135): Amasty\PageSpeedTools\Plugin\ProcessPageResult->aroundRenderResult(Object(Magento\Framework\View\Result\Page\Interceptor), Object(Closure), Object(Magento\Framework\App\Response\Http\Interceptor)) #62 /var/www/vhosts/staging.1people.com/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Result\Page\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Response\Http\Interceptor)) #63 /var/www/vhosts/staging.1people.com/generated/code/Magento/Framework/View/Result/Page/Interceptor.php(95): Magento\Framework\View\Result\Page\Interceptor->___callPlugins('renderResult', Array, NULL) #64 /var/www/vhosts/staging.1people.com/app/code/OnePeople/StoreSwitcher/App/Override/Framework/Http.php(215): Magento\Framework\View\Result\Page\Interceptor->renderResult(Object(Magento\Framework\App\Response\Http\Interceptor)) #65 /var/www/vhosts/staging.1people.com/generated/code/OnePeople/StoreSwitcher/App/Override/Framework/Http/Interceptor.php(23): OnePeople\StoreSwitcher\App\Override\Framework\Http->launch() #66 /var/www/vhosts/staging.1people.com/vendor/magento/framework/App/Bootstrap.php(263): OnePeople\StoreSwitcher\App\Override\Framework\Http\Interceptor->launch() #67 /var/www/vhosts/staging.1people.com/en/index.php(48): Magento\Framework\App\Bootstrap->run(Object(OnePeople\StoreSwitcher\App\Override\Framework\Http\Interceptor)) #68 {main}