( ! ) Fatal error: Out of memory (allocated 19922944) (tried to allocate 28672 bytes) in C:\wamp\www\optica\vendor\doctrine\orm\lib\Doctrine\ORM\Query\SqlWalker.php on line 975
Call Stack
#	Time	Memory	Function	Location
1	0.0002	131936	{main}( )	...\app.php:0
2	0.0144	1526480	Symfony\Component\HttpKernel\Kernel->handle( )	...\app.php:22
3	0.4529	17334616	Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle( )	...\bootstrap.php.cache:2406
4	0.4530	17335560	Symfony\Component\HttpKernel\HttpKernel->handle( )	...\bootstrap.php.cache:3165
5	0.4530	17335808	Symfony\Component\HttpKernel\HttpKernel->handleRaw( )	...\bootstrap.php.cache:3016
6	0.5093	18243056	call_user_func_array:{C:\wamp\www\optica\app\bootstrap.php.cache:3054} ( )	...\bootstrap.php.cache:3054
7	0.5093	18243616	Series\FrontendBundle\Controller\DefaultController->doctoraAction( )	...\bootstrap.php.cache:3054
8	0.5465	18452096	Series\FrontendBundle\Entity\EventRepository->getActiveWeek( )	...\DefaultController.php:167
9	0.5562	18952664	Doctrine\ORM\AbstractQuery->getResult( )	...\EventRepository.php:95
10	0.5562	18952768	Doctrine\ORM\AbstractQuery->execute( )	...\AbstractQuery.php:727
11	0.5562	18952904	Doctrine\ORM\AbstractQuery->executeIgnoreQueryCache( )	...\AbstractQuery.php:924
12	0.5562	18953352	Doctrine\ORM\Query->_doExecute( )	...\AbstractQuery.php:969
13	0.5562	18953600	Doctrine\ORM\Query->_parse( )	...\Query.php:293
14	0.5623	19621832	Doctrine\ORM\Query\Parser->parse( )	...\Query.php:281
15	0.5719	19727312	spl_autoload_call ( )	...\Query.php:387
16	0.5719	19727352	Composer\Autoload\ClassLoader->loadClass( )	...\Query.php:387
17	0.5721	19727480	Composer\Autoload\includeFile( )	...\ClassLoader.php:301