Error: Call to a member function getChildren() on null in /opt/bitnami/apps/magento/htdocs/vendor/mirasvit/module-kb/src/Kb/Block/Category/View.php:260 Stack trace: #0 [internal function]: Mirasvit\Kb\Block\Category\View->getCategoryChildren(NULL) #1 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/TemplateEngine/Php.php(94): call_user_func_array(Array, Array) #2 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/TemplateEngine/Php/Interceptor.php(32): Magento\Framework\View\TemplateEngine\Php->__call('getCategoryChil...', Array) #3 /opt/bitnami/apps/magento/htdocs/app/design/frontend/Chawtech/medicgov/Mirasvit_Kb/templates/category/view.phtml(6): Magento\Framework\View\TemplateEngine\Php\Interceptor->__call('getCategoryChil...', Array) #4 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/TemplateEngine/Php.php(71): include('/opt/bitnami/ap...') #5 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\TemplateEngine\Php->render(Object(Mirasvit\Kb\Block\Category\View), '/opt/bitnami/ap...', Array) #6 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\TemplateEngine\Php\Interceptor->___callParent('render', Array) #7 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\TemplateEngine\Php\Interceptor->Magento\Framework\Interception\{closure}(Object(Mirasvit\Kb\Block\Category\View), '/opt/bitnami/ap...', Array) #8 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/TemplateEngine/Php/Interceptor.php(23): Magento\Framework\View\TemplateEngine\Php\Interceptor->___callPlugins('render', Array, Array) #9 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Element/Template.php(273): Magento\Framework\View\TemplateEngine\Php\Interceptor->render(Object(Mirasvit\Kb\Block\Category\View), '/opt/bitnami/ap...', Array) #10 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Element/Template.php(303): Magento\Framework\View\Element\Template->fetchView('/opt/bitnami/ap...') #11 /opt/bitnami/apps/magento/htdocs/vendor/mirasvit/module-kb/src/Kb/Block/Category/View.php(275): Magento\Framework\View\Element\Template->_toHtml() #12 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Element/AbstractBlock.php(1111): Mirasvit\Kb\Block\Category\View->_toHtml() #13 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Element/AbstractBlock.php(1115): Magento\Framework\View\Element\AbstractBlock->Magento\Framework\View\Element\{closure}() #14 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Element/AbstractBlock.php(675): Magento\Framework\View\Element\AbstractBlock->_loadCache() #15 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(566): Magento\Framework\View\Element\AbstractBlock->toHtml() #16 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(542): Magento\Framework\View\Layout->_renderBlock('kb.category.vie...') #17 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('kb.category.vie...') #18 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('kb.category.vie...') #19 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('kb.category.vie...', false) #20 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('kb.category.vie...', false) #21 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('content', false) #22 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('content') #23 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('content') #24 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('content', false) #25 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('content', false) #26 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('main', false) #27 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('main') #28 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('main') #29 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('main', false) #30 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('main', false) #31 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('columns', false) #32 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('columns') #33 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('columns') #34 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('columns', false) #35 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('columns', false) #36 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('main.content', false) #37 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('main.content') #38 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('main.content') #39 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('main.content', false) #40 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('main.content', false) #41 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('page.wrapper', false) #42 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('page.wrapper') #43 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('page.wrapper') #44 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('page.wrapper', false) #45 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(594): Magento\Framework\View\Layout\Interceptor->renderElement('page.wrapper', false) #46 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(544): Magento\Framework\View\Layout->_renderContainer('root', false) #47 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement('root') #48 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(497): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('root') #49 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement('root', true) #50 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Layout.php(963): Magento\Framework\View\Layout\Interceptor->renderElement('root') #51 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\Layout->getOutput() #52 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\Layout\Interceptor->___callParent('getOutput', Array) #53 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Layout\Interceptor->Magento\Framework\Interception\{closure}() #54 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Layout/Interceptor.php(347): Magento\Framework\View\Layout\Interceptor->___callPlugins('getOutput', Array, Array) #55 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Result/Page.php(258): Magento\Framework\View\Layout\Interceptor->getOutput() #56 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/View/Result/Layout.php(171): Magento\Framework\View\Result\Page->render(Object(Magento\Framework\App\Response\Http\Interceptor)) #57 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\Result\Layout->renderResult(Object(Magento\Framework\App\Response\Http\Interceptor)) #58 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\Result\Page\Interceptor->___callParent('renderResult', Array) #59 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Result\Page\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Response\Http\Interceptor)) #60 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/View/Result/Page/Interceptor.php(95): Magento\Framework\View\Result\Page\Interceptor->___callPlugins('renderResult', Array, Array) #61 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/App/Http.php(120): Magento\Framework\View\Result\Page\Interceptor->renderResult(Object(Magento\Framework\App\Response\Http\Interceptor)) #62 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http->launch() #63 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/App/Bootstrap.php(263): Magento\Framework\App\Http\Interceptor->launch() #64 /opt/bitnami/apps/magento/htdocs/index.php(46): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor)) #65 {main}