Error message
Warning: Undefined array key "field_end_date" in Drupal\fullcalendar_view\FullcalendarViewPreprocess->process() (line 162 of modules/contrib/fullcalendar_view/src/FullcalendarViewPreprocess.php).
Drupal\fullcalendar_view\FullcalendarViewPreprocess->process() (Line: 32) template_preprocess_views_view_fullcalendar() call_user_func_array() (Line: 261) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 93) __TwigTemplate_45653a70b0b10c1e331c54ef4a22797a->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 54) __TwigTemplate_d3c7f67cf089028840cbf84f02d65911->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 502) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 95) __TwigTemplate_584b83f0d06e48ae119f4271b4156194->block_content() (Line: 432) Twig\Template->yieldBlock() (Line: 72) __TwigTemplate_584b83f0d06e48ae119f4271b4156194->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 90) __TwigTemplate_b65beddd30df6bd2c2da928e6f4c9d97->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 102) __TwigTemplate_60f44f29404e7322d1789cc9167c80f6->block_content() (Line: 432) Twig\Template->yieldBlock() (Line: 77) __TwigTemplate_60f44f29404e7322d1789cc9167c80f6->block_paragraph() (Line: 432) Twig\Template->yieldBlock() (Line: 54) __TwigTemplate_60f44f29404e7322d1789cc9167c80f6->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 60) __TwigTemplate_cc740db77ab241ddf3a11964a5f6bbbd->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 99) __TwigTemplate_45bc1c06ad9b61005b6d8e520a957d4b->block_content() (Line: 432) Twig\Template->yieldBlock() (Line: 77) __TwigTemplate_45bc1c06ad9b61005b6d8e520a957d4b->block_paragraph() (Line: 432) Twig\Template->yieldBlock() (Line: 54) __TwigTemplate_45bc1c06ad9b61005b6d8e520a957d4b->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 70) __TwigTemplate_b65beddd30df6bd2c2da928e6f4c9d97->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 183) __TwigTemplate_2b17f2783f550cfe277243d625cda5cd->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 238) Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 593) Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 231) Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 128) Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray() (Line: 155) Drupal\tracer\EventDispatcher\TraceableEventDispatcher->callListeners() (Line: 77) Drupal\tracer\EventDispatcher\TraceableEventDispatcher->dispatch() (Line: 188) Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76) Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53) Drupal\Core\StackMiddleware\Session->handle() (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28) Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 201) Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 138) Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 87) Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 38) Drupal\tracer\StackMiddleware\TracesMiddleware->handle() (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36) Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51) Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 709) Drupal\Core\DrupalKernel->handle() (Line: 19)Warning: Attempt to read property "options" on null in Drupal\fullcalendar_view\FullcalendarViewPreprocess->process() (line 162 of modules/contrib/fullcalendar_view/src/FullcalendarViewPreprocess.php).
Drupal\fullcalendar_view\FullcalendarViewPreprocess->process() (Line: 32) template_preprocess_views_view_fullcalendar() call_user_func_array() (Line: 261) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 93) __TwigTemplate_45653a70b0b10c1e331c54ef4a22797a->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 54) __TwigTemplate_d3c7f67cf089028840cbf84f02d65911->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 502) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 95) __TwigTemplate_584b83f0d06e48ae119f4271b4156194->block_content() (Line: 432) Twig\Template->yieldBlock() (Line: 72) __TwigTemplate_584b83f0d06e48ae119f4271b4156194->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 90) __TwigTemplate_b65beddd30df6bd2c2da928e6f4c9d97->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 102) __TwigTemplate_60f44f29404e7322d1789cc9167c80f6->block_content() (Line: 432) Twig\Template->yieldBlock() (Line: 77) __TwigTemplate_60f44f29404e7322d1789cc9167c80f6->block_paragraph() (Line: 432) Twig\Template->yieldBlock() (Line: 54) __TwigTemplate_60f44f29404e7322d1789cc9167c80f6->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 60) __TwigTemplate_cc740db77ab241ddf3a11964a5f6bbbd->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 99) __TwigTemplate_45bc1c06ad9b61005b6d8e520a957d4b->block_content() (Line: 432) Twig\Template->yieldBlock() (Line: 77) __TwigTemplate_45bc1c06ad9b61005b6d8e520a957d4b->block_paragraph() (Line: 432) Twig\Template->yieldBlock() (Line: 54) __TwigTemplate_45bc1c06ad9b61005b6d8e520a957d4b->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 70) __TwigTemplate_b65beddd30df6bd2c2da928e6f4c9d97->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 459) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 484) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 183) __TwigTemplate_2b17f2783f550cfe277243d625cda5cd->doDisplay() (Line: 388) Twig\Template->yield() (Line: 344) Twig\Template->display() (Line: 359) Twig\Template->render() (Line: 51) Twig\TemplateWrapper->render() (Line: 33) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 446) Drupal\Core\Render\Renderer->doRender() (Line: 203) Drupal\Core\Render\Renderer->render() (Line: 238) Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 593) Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 231) Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 128) Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray() (Line: 155) Drupal\tracer\EventDispatcher\TraceableEventDispatcher->callListeners() (Line: 77) Drupal\tracer\EventDispatcher\TraceableEventDispatcher->dispatch() (Line: 188) Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76) Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53) Drupal\Core\StackMiddleware\Session->handle() (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28) Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 201) Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 138) Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 87) Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 38) Drupal\tracer\StackMiddleware\TracesMiddleware->handle() (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36) Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51) Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 709) Drupal\Core\DrupalKernel->handle() (Line: 19)