ご返信ありがとうございます。
その他のプラグインでは有効化までできるようになったのですが、
今回インストールを行いたいペイパルのプラグインの有効化ができない状況です。

以下にログを記載致します。
解決方法を、お教え頂ければ幸いです。



**************** PayPalCheckout ****************
<warning>Deprecation warning: require.ec-cube/GmoPaymentGateway4 is invalid, it should not contain uppercase characters. Please use ec-cube/gmopaymentgateway4 instead. Make sure you fix this as Composer 2.0 will error.</warning>
<warning>Deprecation warning: require.ec-cube/PayPalCheckout is invalid, it should not contain uppercase characters. Please use ec-cube/paypalcheckout instead. Make sure you fix this as Composer 2.0 will error.</warning>
[14.4MiB/1.84s] <warning>Warning from https://repo.packagist.org: You are using an outdated version of Composer. Composer 2 is now available and you should upgrade. See https://getcomposer.org/2</warning>
[201.7MiB/9.95s] Using version ^1.0 for ec-cube/PayPalCheckout
[201.7MiB/10.01s] ./composer.json has been updated
[202.1MiB/11.25s] <warning>Deprecation warning: require.ec-cube/GmoPaymentGateway4 is invalid, it should not contain uppercase characters. Please use ec-cube/gmopaymentgateway4 instead. Make sure you fix this as Composer 2.0 will error.</warning>
[202.1MiB/11.25s] <warning>Deprecation warning: require.ec-cube/PayPalCheckout is invalid, it should not contain uppercase characters. Please use ec-cube/paypalcheckout instead. Make sure you fix this as Composer 2.0 will error.</warning>
[205.9MiB/16.18s] <warning>Dependency "ec-cube/plugin-installer" is also a root requirement, but is not explicitly whitelisted. Ignoring.</warning>
[205.7MiB/16.18s] Loading composer repositories with package information
[207.0MiB/18.03s] <warning>Warning from https://repo.packagist.org: You are using an outdated version of Composer. Composer 2 is now available and you should upgrade. See https://getcomposer.org/2</warning>
[207.0MiB/18.12s] Updating dependencies (including require-dev)
[653.5MiB/135.93s] Nothing to install or update
[650.8MiB/136.03s] <warning>Package doctrine/doctrine-cache-bundle is abandoned, you should avoid using it. No replacement was suggested.</warning>
[650.8MiB/136.03s] <warning>Package doctrine/reflection is abandoned, you should avoid using it. Use roave/better-reflection instead.</warning>
[650.8MiB/136.03s] <warning>Package easycorp/easy-log-handler is abandoned, you should avoid using it. No replacement was suggested.</warning>
[650.8MiB/136.03s] <warning>Package facebook/webdriver is abandoned, you should avoid using it. Use php-webdriver/webdriver instead.</warning>
[650.8MiB/136.03s] <warning>Package fzaninotto/faker is abandoned, you should avoid using it. No replacement was suggested.</warning>
[650.8MiB/136.03s] <warning>Package phpunit/php-token-stream is abandoned, you should avoid using it. No replacement was suggested.</warning>
[650.8MiB/136.03s] <warning>Package phpunit/phpunit-mock-objects is abandoned, you should avoid using it. No replacement was suggested.</warning>
[650.8MiB/136.03s] <warning>Package sensio/generator-bundle is abandoned, you should avoid using it. Use symfony/maker-bundle instead.</warning>
[650.8MiB/136.03s] <warning>Package setasign/fpdi-tcpdf is abandoned, you should avoid using it. No replacement was suggested.</warning>
[650.8MiB/136.03s] <warning>Package twig/extensions is abandoned, you should avoid using it. No replacement was suggested.</warning>
[650.8MiB/136.03s] <warning>Package zendframework/zend-code is abandoned, you should avoid using it. Use laminas/laminas-code instead.</warning>
[650.8MiB/136.03s] <warning>Package zendframework/zend-eventmanager is abandoned, you should avoid using it. Use laminas/laminas-eventmanager instead.</warning>
[651.6MiB/136.06s] Generating optimized autoload files