( ! ) Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 20480 bytes) in D:\wamp64\www\kqcs\core\lib\Drupal\Core\Cache\DatabaseBackend.php on line 167
Call Stack
#	Time	Memory	Function	Location
1	0.0001	417848	{main}( )	...\index.php:0
2	0.0041	528264	Drupal\Core\DrupalKernel->handle( )	...\index.php:19
3	0.0454	1700904	Stack\StackedHttpKernel->handle( )	...\DrupalKernel.php:693
4	0.0454	1700904	Drupal\Core\StackMiddleware\NegotiationMiddleware->handle( )	...\StackedHttpKernel.php:23
5	0.0455	1701600	Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle( )	...\NegotiationMiddleware.php:52
6	0.0456	1701600	Drupal\page_cache\StackMiddleware\PageCache->handle( )	...\ReverseProxyMiddleware.php:47
7	0.0463	1709936	Drupal\page_cache\StackMiddleware\PageCache->lookup( )	...\PageCache.php:82
8	0.0478	1710032	Drupal\page_cache\StackMiddleware\PageCache->fetch( )	...\PageCache.php:128
9	0.0478	1710032	Drupal\Core\StackMiddleware\KernelPreHandle->handle( )	...\PageCache.php:191
10	0.0614	2120784	Drupal\Core\StackMiddleware\Session->handle( )	...\KernelPreHandle.php:47
11	0.0672	2219544	Symfony\Component\HttpKernel\HttpKernel->handle( )	...\Session.php:57
12	0.0673	2219960	Symfony\Component\HttpKernel\HttpKernel->handleRaw( )	...\HttpKernel.php:68
13	0.2815	11093808	Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch( )	...\HttpKernel.php:156
14	0.2838	11104888	call_user_func:{D:\wamp64\www\kqcs\core\lib\Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher.php:111} ( )	...\ContainerAwareEventDispatcher.php:111
15	0.2838	11104888	Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray( )	...\ContainerAwareEventDispatcher.php:111
16	0.2850	11112080	Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse( )	...\MainContentViewSubscriber.php:90
17	0.2850	11112080	Drupal\Core\Render\MainContent\HtmlRenderer->prepare( )	...\HtmlRenderer.php:117
18	0.2859	11117728	Drupal\Core\Render\Renderer->executeInRenderContext( )	...\HtmlRenderer.php:227
19	0.2860	11117728	Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}( )	...\Renderer.php:582
20	0.2860	11118800	Drupal\Core\Render\Renderer->render( )	...\HtmlRenderer.php:226
21	0.2860	11118800	Drupal\Core\Render\Renderer->doRender( )	...\Renderer.php:195
22	0.6715	13787936	call_user_func:{D:\wamp64\www\kqcs\core\lib\Drupal\Core\Render\Renderer.php:378} ( )	...\Renderer.php:378
23	0.6719	13789992	Drupal\views\Element\View::preRenderViewElement( )	...\Renderer.php:378
24	0.6871	13952856	Drupal\views\ViewExecutable->executeDisplay( )	...\View.php:77
25	0.7353	15680136	Drupal\views\Plugin\views\display\Page->execute( )	...\ViewExecutable.php:1630
26	0.8349	17690960	Drupal\views\ViewExecutable->render( )	...\Page.php:183
27	0.8349	17690960	Drupal\views\ViewExecutable->execute( )	...\ViewExecutable.php:1454
28	0.8453	17790776	Drupal\views\Plugin\views\query\Sql->execute( )	...\ViewExecutable.php:1426
29	1.3771	28649720	Drupal\views\Plugin\views\query\Sql->loadEntities( )	...\Sql.php:1535
30	1.8604	35209896	Drupal\node\NodeStorage->loadMultiple( )	...\Sql.php:1610
31	2.1121	36262704	Drupal\node\NodeStorage->doLoadMultiple( )	...\EntityStorageBase.php:292
32	2.1121	36262728	Drupal\node\NodeStorage->getFromPersistentCache( )	...\SqlContentEntityStorage.php:412
33	2.2382	38011424	Drupal\Core\Cache\DatabaseBackend->getMultiple( )	...\ContentEntityStorageBase.php:1020
34	5.1923	291397792	Drupal\Core\Cache\DatabaseBackend->prepareItem( )	...\DatabaseBackend.php:122
35	5.1924	291398200	unserialize ( )	...\DatabaseBackend.php:167