お返事ありがとうございます。

1.のWAFでの制限は確認中です。

2,ログを下記に記載します。

[2023-02-02 14:45:30] front.ERROR [fe6832f9] [e6a9ce6] [anon.] [Eccube\Log\Logger:log:66] - システムエラーが発生しまし>た。 ["Call to a member function getJob() on null","/home/ec2-user/eccube-4.0.5/src/Eccube/Controller/ProductController.php",252,"#0 /home/ec2-user/eccube-4.0.5/vendor/symfony/http-kernel/HttpKernel.php(151): Eccube\\Controller\\ProductController->index(Object(Symfony\\Component\\HttpFoundation\\Request), Object(Paginator_f262b94))\n#1 /home/ec2-user/eccube-4.0.5/vendor/symfony/http-kernel/HttpKernel.php(68): Symfony\\Component\\HttpKernel\\HttpKernel->handleRaw(Object(Symfony\\Component\\HttpFoundation\\Request), 1)\n#2 /home/ec2-user/eccube-4.0.5/vendor/symfony/http-kernel/Kernel.php(200): Symfony\\Component\\HttpKernel\\HttpKernel->handle(Object(Symfony\\Component\\HttpFoundation\\Request), 1, true)\n#3 /home/ec2-user/eccube-4.0.5/index.php(76): Symfony\\Component\\HttpKernel\\Kernel->handle(Object(Symfony\\Component\\HttpFoundation\\Request))\n#4 {main}"] [GET, /products/list, 116.82.244.152, NULL, Apache-HttpClient/4.5.13 (Java/1.8.0_281)]

[2023-02-02 17:18:06] front.ERROR [N/A] [4cbec57] [N/A] [Eccube\Log\Logger:log:66] - システムエラーが発生しました。 ["Error: Out of memory (allocated 16777216) (tried to allocate 524288 bytes)","/home/ec2-user/eccube-4.0.5/var/cache/prod/EccubeProdProjectContainerUrlMatcher.php",2067,"#0 {main}"] [GET, /mypage/login, 116.82.244.152, NULL, Apache-HttpClient/4.5.13 (Java/1.8.0_281)]
[2023-02-02 17:18:06] front.ERROR [N/A] [5b63bce] [anon.] [Eccube\Log\Logger:log:66] - システムエラーが発生しました。 ["Error: Out of memory (allocated 8388608) (tried to allocate 4096 bytes)","/home/ec2-user/eccube-4.0.5/var/cache/prod/ContainerSy0nhbg/getArgumentResolver_ServiceService.php",191,"#0 {main}"] [GET, /mypage/login, 116.82.244.152, NULL, Apache-HttpClient/4.5.13 (Java/1.8.0_281)]


何卒、よろしくお願い申し上げます。