User error: "0" is an invalid render array key in Drupal\Core\Render\Element::children()

After viewing the node with lb_branch_amenities_blocks Block. There are php errors in Recent Log messages

User error: "0" is an invalid render array key in Drupal\Core\Render\Element::children() (line 98 of /var/www/docroot/core/lib/Drupal/Core/Render/Element.php)
#0 /var/www/docroot/core/includes/bootstrap.inc(158): _drupal_error_handler_real(256, '"0" is an inval...', '/var/www/docroo...', 98)
#1 [internal function]: _drupal_error_handler(256, '"0" is an inval...', '/var/www/docroo...', 98)
#2 /var/www/docroot/core/lib/Drupal/Core/Render/Element.php(98): trigger_error('"0" is an inval...', 256)
#3 /var/www/docroot/core/lib/Drupal/Core/Render/Renderer.php(404): Drupal\Core\Render\Element::children(Array, true)
#4 /var/www/docroot/core/lib/Drupal/Core/Render/Renderer.php(446): Drupal\Core\Render\Renderer->doRender(Array)
#5 /var/www/docroot/core/lib/Drupal/Core/Render/Renderer.php(204): Drupal\Core\Render\Renderer->doRender(Array, false)
#6 /var/www/docroot/core/lib/Drupal/Core/Template/TwigExtension.php(477): Drupal\Core\Render\Renderer->render(Array)
#7 /var/www/docroot/sites/default/files/php/twig/652e8a84ab6ab_block--lb-branch-amenitie_wSIQhiZx7Hbcs1VQpzwTK6ymu/wiGsZJj68b8h2ssJmDbNztrjAGsKRs6n3hdJg0SCPyg.php(124): Drupal\Core\Template\TwigExtension->escapeFilter(Object(Drupal\Core\Template\TwigEnvironment), Array, 'html', NULL, true)
#8 /var/www/vendor/twig/twig/src/Template.php(171): __TwigTemplate_fe1ef762d856d1426b90888f97255982->block_content(Array, Array)
#9 /var/www/docroot/sites/default/files/php/twig/652e8a84ab6ab_block--lb-branch-amenitie_wSIQhiZx7Hbcs1VQpzwTK6ymu/wiGsZJj68b8h2ssJmDbNztrjAGsKRs6n3hdJg0SCPyg.php(104): Twig\Template->displayBlock('content', Array, Array)
#10 /var/www/vendor/twig/twig/src/Template.php(394): __TwigTemplate_fe1ef762d856d1426b90888f97255982->doDisplay(Array, Array)
#11 /var/www/vendor/twig/twig/src/Template.php(367): Twig\Template->displayWithErrorHandling(Array, Array)
#12 /var/www/vendor/twig/twig/src/Template.php(379): Twig\Template->display(Array)
#13 /var/www/vendor/twig/twig/src/TemplateWrapper.php(40): Twig\Template->render(Array, Array)
#14 /var/www/docroot/core/themes/engines/twig/twig.engine(53): Twig\TemplateWrapper->render(Array)
#15 /var/www/docroot/core/lib/Drupal/Core/Theme/ThemeManager.php(372): twig_render_template('modules/contrib...', Array)
#16 /var/www/docroot/core/lib/Drupal/Core/Render/Renderer.php(433): Drupal\Core\Theme\ThemeManager->render('block', Array)
#17 /var/www/docroot/core/lib/Drupal/Core/Render/Renderer.php(446): Drupal\Core\Render\Renderer->doRender(Array)
#18 /var/www/docroot/core/lib/Drupal/Core/Render/Renderer.php(204): Drupal\Core\Render\Renderer->doRender(Array, false)
#19 /var/www/docroot/core/lib/Drupal/Core/Template/TwigExtension.php(477): Drupal\Core\Render\Renderer->render(Array)
#20 /var/www/docroot/sites/default/files/php/twig/652e8a84ab6ab_blb-section--y-lb.html.tw_8UOsJiX1bIaOxtyuB3xGOf309/dAlLjewXN_nH5d4gLrqlLgh4mNoWnRI3Y52wBE7djmM.php(71): Drupal\Core\Template\TwigExtension->escapeFilter(Object(Drupal\Core\Template\TwigEnvironment), Array, 'html', NULL, true)