Message Notice: Undefined index: wxresources_21_#20208

[guoxiangke]

Message Notice: Undefined index: wxresources_21_#20208 in Drupal\Core\Cache\DatabaseBackend->getMultiple() (line 120 of /var/www/html/core/lib/Drupal/Core/Cache/DatabaseBackend.php)
#0 /var/www/html/core/includes/bootstrap.inc(566): _drupal_error_handler_real(8, 'Undefined index...', '/var/www/html/c...', 120, Array)
#1 /var/www/html/core/lib/Drupal/Core/Cache/DatabaseBackend.php(120): drupal_error_handler(8, 'Undefined index...', '/var/www/html/c...', 120, Array)
#2 /var/www/html/core/lib/Drupal/Core/Cache/DatabaseBackend.php(91): Drupal\Core\Cache\DatabaseBackend->getMultiple(Array, false)
#3 /var/www/html/modules/custom/wechat_api/wechat_api.module(255): Drupal\Core\Cache\DatabaseBackend->get('wxresources_21...')
#4 [internal function]: wechat_api_wxresources_text_alter(Object(Drupal\wechat_api\Plugin\Wechat\Wechat))
#5 /var/www/html/core/lib/Drupal/Core/Extension/ModuleHandler.php(402): call_user_func_array('wechat_api_wxre...', Array)
#6 /var/www/html/modules/custom/wechat_api/src/Controller/WechatController.php(161): Drupal\Core\Extension\ModuleHandler->invokeAll('wxresources_tex...', Array)
#7 /var/www/html/modules/custom/wechat_api/src/Controller/WechatController.php(79): Drupal\wechat_api\Controller\WechatController->wechat_get_resources('text')
#8 [internal function]: Drupal\wechat_api\Controller\WechatController->mpResponse('21')
#9 /var/www/html/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array)
#10 /var/www/html/core/lib/Drupal/Core/Render/Renderer.php(576): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber{closure}()
#11 /var/www/html/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure))
#12 /var/www/html/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array)
#13 [internal function]: Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber{closure}()
#14 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(153): call_user_func_array(Object(Closure), Array)
#15 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(68): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#16 /var/www/html/core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#17 /var/www/html/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#18 /var/www/html/core/modules/page_cache/src/StackMiddleware/PageCache.php(99): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#19 /var/www/html/core/modules/page_cache/src/StackMiddleware/PageCache.php(78): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#20 /var/www/html/modules/contrib/cdn/src/StackMiddleware/DuplicateContentPreventionMiddleware.php(118): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#21 /var/www/html/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\cdn\StackMiddleware\DuplicateContentPreventionMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#22 /var/www/html/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(50): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#23 /var/www/html/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#24 /var/www/html/core/lib/Drupal/Core/DrupalKernel.php(657): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#25 /var/www/html/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#26 {main}.