お世話になっております。
今回お客様のサイトをEC-CUBE4.2にて構築し、ソニーペイメントのクレジット決済を導入し、プラグイン設定をマニュアルに沿って【e-SCOTT Smart light for EC-CUBEテスト環境】加盟店接続情報をもとに
諸々済ました上でテストカード情報を入力し決済テストを行ったところ、カードの与信処理が失敗しました: システムエラーが発生しました。と表示され決済が完了せず、受注一覧にも出てこない状況です

テストカード情報の確認や設定関連の確認を行ったのですが解決の糸口が見つからず、ご教授いただいきたいです
下記エラーログなのでご確認ください
（情報系は○○で伏せ字）


[2024-09-12 17:24:44] app.INFO [N/A] [7115c51] [1] [Eccube\Log\Logger:log:68] - PROCESS END ["sln_card_payment"] [GET, /shopping/sln_card_payment, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] front.INFO [7e8a0efc] [7115c51] [1] [Eccube\Log\Logger:log:66] - LOGIC END ["sln_card_payment"] [GET, /shopping/sln_card_payment, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] php.INFO [7e8a0efc] [7115c51] [1] [Symfony\Component\Debug\ErrorHandler:handleError:532] - User Deprecated: Doctrine\Common\Util\Inflector is deprecated. {"exception":"[object] (ErrorException(code: 0): User Deprecated: Doctrine\\Common\\Util\\Inflector is deprecated. at ○○○○/vendor/doctrine/common/lib/Doctrine/Common/Util/Inflector.php:8)"} [GET, /shopping/sln_card_payment, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] php.INFO [7e8a0efc] [7115c51] [1] [Symfony\Component\Debug\ErrorHandler:handleError:532] - User Deprecated: The "Sensio\Bundle\FrameworkExtraBundle\Configuration\Route" annotation is deprecated since version 5.2. Use "Symfony\Component\Routing\Annotation\Route" instead. {"exception":"[object] (ErrorException(code: 0): User Deprecated: The \"Sensio\\Bundle\\FrameworkExtraBundle\\Configuration\\Route\" annotation is deprecated since version 5.2. Use \"Symfony\\Component\\Routing\\Annotation\\Route\" instead. at ○○○○/vendor/sensio/framework-extra-bundle/Configuration/Route.php:16)"} [GET, /shopping/sln_card_payment, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] front.INFO [7e8a0efc] [7115c51] [1] [Eccube\Log\Logger:log:66] - LOGIC START ["sln_card_payment"] [GET, /shopping/sln_card_payment, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] front.INFO [7e8a0efc] [7115c51] [1] [Eccube\Log\Logger:log:66] - fallback to PC layout [] [GET, /shopping/sln_card_payment, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] front.INFO [7e8a0efc] [7115c51] [1] [Eccube\Log\Logger:log:66] - PROCESS START ["sln_card_payment"] [GET, /shopping/sln_card_payment, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] request.INFO [N/A] [7115c51] [N/A] [Symfony\Component\HttpKernel\EventListener\RouterListener:onKernelRequest:123] - Matched route "sln_card_payment". {"route":"sln_card_payment","route_parameters":{"_controller":"Plugin\\SlnPayment4\\Controller\\PaymentController::cardIndex","_route":"sln_card_payment"},"request_uri":"http://○○○○○○○○○○/shopping/sln_card_payment","method":"GET"} [GET, /shopping/sln_card_payment, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] front.INFO [N/A] [7115c51] [N/A] [Eccube\Log\Logger:log:66] - INIT [] [GET, /shopping/sln_card_payment, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] app.DEBUG [N/A] [e918b2f] [1] [Eccube\Log\Logger:log:68] - Commit executed. [] [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] app.INFO [N/A] [e918b2f] [1] [Eccube\Log\Logger:log:68] - PROCESS END ["sln_card_payment"] [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] security.DEBUG [7e8a0efc] [e918b2f] [1] [Symfony\Component\Security\Http\Firewall\ContextListener:onKernelResponse:150] - Stored the security token in the session. {"key":"_security_customer"} [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] front.INFO [7e8a0efc] [e918b2f] [1] [Eccube\Log\Logger:log:66] - LOGIC END ["sln_card_payment"] [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] app.ERROR [7e8a0efc] [e918b2f] [1] [Plugin\SlnPayment4\Service\Util:addErrorLog:117] - [{/index.php}from {○○○○○○○○○} [file: ○○○○/vendor/symfony/http-kernel/HttpKernel.php line: 151 function: cardIndex file: ○○○○/vendor/symfony/http-kernel/HttpKernel.php line: 68 function: handleRaw file: ○○○○/vendor/symfony/http-kernel/Kernel.php line: 200 function: handle file: ○○○○/index.php line: 76 function: handle ][ その他例外エラー システムエラーが発生しました。ソニーペイメントサービスにお問合せください。（K99)order_id:14] [] [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] app.NOTICE [7e8a0efc] [e918b2f] [1] [Plugin\SlnPayment4\Service\Util:addCardNotice:107] - [{/index.php}from {○○○○○○○○○} [file: ○○○○/vendor/symfony/http-kernel/HttpKernel.php line: 151 function: cardIndex file: ○○○○/vendor/symfony/http-kernel/HttpKernel.php line: 68 function: handleRaw file: ○○○○/vendor/symfony/http-kernel/Kernel.php line: 200 function: handle file: ○○○○/index.php line: 76 function: handle ][card shopping error:カードの与信処理が失敗しました: システムエラーが発生しました。 order_id(14 ○○○○/app/Plugin/SlnPayment4/Service/SlnAction/Credit.php238)] [] [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] front.ERROR [7e8a0efc] [e918b2f] [1] [Eccube\Log\Logger:log:66] - ○○○○/app/Plugin/SlnPayment4/Controller/PaymentController.php(401) カードの与信処理が失敗しました: システムエラーが発生しました。 [] [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] php.INFO [7e8a0efc] [e918b2f] [1] [Symfony\Component\Debug\ErrorHandler:handleError:532] - User Deprecated: Duplicate key "K99" detected whilst parsing YAML. Silent handling of duplicate mapping keys in YAML is deprecated since Symfony 3.2 and will throw \Symfony\Component\Yaml\Exception\ParseException in 4.0 on line 121. {"exception":"[object] (ErrorException(code: 0): User Deprecated: Duplicate key \"K99\" detected whilst parsing YAML. Silent handling of duplicate mapping keys in YAML is deprecated since Symfony 3.2 and will throw \\Symfony\\Component\\Yaml\\Exception\\ParseException in 4.0 on line 121. at ○○○○/vendor/symfony/yaml/Parser.php:406)"} [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] php.INFO [7e8a0efc] [e918b2f] [1] [Symfony\Component\Debug\ErrorHandler:handleError:532] - User Deprecated: Duplicate key "K98" detected whilst parsing YAML. Silent handling of duplicate mapping keys in YAML is deprecated since Symfony 3.2 and will throw \Symfony\Component\Yaml\Exception\ParseException in 4.0 on line 120. {"exception":"[object] (ErrorException(code: 0): User Deprecated: Duplicate key \"K98\" detected whilst parsing YAML. Silent handling of duplicate mapping keys in YAML is deprecated since Symfony 3.2 and will throw \\Symfony\\Component\\Yaml\\Exception\\ParseException in 4.0 on line 120. at ○○○○/vendor/symfony/yaml/Parser.php:406)"} [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]
[2024-09-12 17:24:44] php.INFO [7e8a0efc] [e918b2f] [1] [Symfony\Component\Debug\ErrorHandler:handleError:532] - User Deprecated: Duplicate key "K96" detected whilst parsing YAML. Silent handling of duplicate mapping keys in YAML is deprecated since Symfony 3.2 and will throw \Symfony\Component\Yaml\Exception\ParseException in 4.0 on line 119. {"exception":"[object] (ErrorException(code: 0): User Deprecated: Duplicate key \"K96\" detected whilst parsing YAML. Silent handling of duplicate mapping keys in YAML is deprecated since Symfony 3.2 and will throw \\Symfony\\Component\\Yaml\\Exception\\ParseException in 4.0 on line 119. at ○○○○/vendor/symfony/yaml/Parser.php:406)"} [POST, /shopping/sln_card_payment?, ○○○○○○○○○, http://○○○○○○○○○○/shopping/sln_card_payment, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36]