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Error: Call to a member function get() on null in Drupal\ebs_entities\CoursesManagerService->getLanguagesCourse() (line 863 of modules/custom/ebs_entities/src/CoursesManagerService.php).
Drupal\ebs_entities\CoursesManagerService->getLanguagesCourse(Object) (Line: 923) Drupal\ebs_entities\CoursesManagerService->serializableEntity(Object, Object) (Line: 814) Drupal\ebs_entities\CoursesManagerService->getSerializableDestinations() (Line: 158) ebs_entities_preprocess_paragraph(Array, 'paragraph', Array) (Line: 287) Drupal\Core\Theme\ThemeManager->render('paragraph', Array) (Line: 431) Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 200) Drupal\Core\Render\Renderer->render(Array) (Line: 501) Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 69) __TwigTemplate_cab6c61f265c96075f240137db92918cbf79c8ff66d66f4029a51f07f748187d->doDisplay(Array, Array) (Line: 455) Twig\Template->displayWithErrorHandling(Array, Array) (Line: 422) Twig\Template->display(Array) (Line: 434) Twig\Template->render(Array) (Line: 64) twig_render_template('themes/custom/barschool/templates/field/system/field.html.twig', Array) (Line: 384) Drupal\Core\Theme\ThemeManager->render('field', Array) (Line: 431) Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 200) Drupal\Core\Render\Renderer->render(Array) (Line: 601) Drupal\Core\Template\TwigExtension->renderVar(Array) (Line: 103) __TwigTemplate_41603a7c71b049fd9b972dcb1319f4dc97bcceb402db3c37457bca9bf230d3c8->doDisplay(Array, Array) (Line: 455) Twig\Template->displayWithErrorHandling(Array, Array) (Line: 422) Twig\Template->display(Array) (Line: 434) Twig\Template->render(Array) (Line: 64) twig_render_template('themes/custom/barschool/templates/content/page/node--page.html.twig', Array) (Line: 384) Drupal\Core\Theme\ThemeManager->render('node', Array) (Line: 431) Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 200) Drupal\Core\Render\Renderer->render(Array, ) (Line: 226) Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 573) Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 227) Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object, Object) (Line: 117) Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object, Object) (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object) call_user_func(Array, Object, 'kernel.view', Object) (Line: 111) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object) (Line: 156) Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 68) Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57) Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47) Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 191) Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128) Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82) Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 50) Drupal\ban\BanMiddleware->handle(Object, 1, 1) (Line: 265) Drupal\shield\ShieldMiddleware->bypass(Object, 1, 1) (Line: 132) Drupal\shield\ShieldMiddleware->handle(Object, 1, 1) (Line: 47) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 708) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)