▼テンプレート
[EC-CUBE] 4.2
[レンタルサーバ] Xserver
[PHP] 7.4
[現象] XserverにEC-CUBEをインストールし
ゼウス決済プラグインをインストールするとエラーとなります。

エラーログは以下になります。


************** ZeusPayment42 ****************
<warning>A script named compile would override a Composer command and has been skipped</warning>
<warning>A script named auto-scripts would override a Composer command and has been skipped</warning>
<warning>A script named installer-scripts would override a Composer command and has been skipped</warning>
[12.1MiB/0.93s] Using version ^2.2 for ec-cube/zeuspayment42
[12.2MiB/0.93s] ./composer.json has been updated
[14.4MiB/0.98s] Running composer update ec-cube/zeuspayment42 --with-dependencies
[16.5MiB/1.00s] Loading composer repositories with package information
[17.1MiB/1.86s] <warning>Dependency ec-cube/plugin-installer is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.</warning>
[17.4MiB/1.87s] Updating dependencies
[19.3MiB/1.89s] Your requirements could not be resolved to an installable set of packages.
[19.3MiB/1.89s]
Problem 1
- lcobucci/jwt 4.2.1 requires ext-sodium * -> it is missing from your system. Install or enable PHP's sodium extension.
- league/oauth2-server-bundle v0.3.0 requires league/oauth2-server ^8.3 -> satisfiable by league/oauth2-server[8.3.5].
- ec-cube/api42 4.2.3 requires league/oauth2-server-bundle ^0.3 -> satisfiable by league/oauth2-server-bundle[v0.3.0].
- league/oauth2-server 8.3.5 requires lcobucci/jwt ^3.4.6 || ^4.0.4 -> satisfiable by lcobucci/jwt[4.2.1].
- ec-cube/api42 is locked to version 4.2.3 and an update of this package was not requested.




過去のフォーラムで「sodium extension」がインストールされていないのでは？という記載を見つけたので、サーバー会社に問い合わせを行ったところ、
「当サーバーのPHP環境ではSodium拡張機能をご利用いただけません。」と回答が来ました。

このサーバーではプラグインをインストールできないのでしょうか？