The file /vendor/whmcs/whmcs-foundation/lib/Installer/Composer/Hooks/ComposerInstallerHook.php encoded as type [1/72] cannot be decoded by this version of the ionCube Loader.

[Cloudify]

@WHMCS JohnI had the same issue but Error500 and the preview for this error as per below, I updated the domain in the post

The Screenshot is attached for my PHP setting, kindly advise me, I'm unable to update the WHMCS version.

My PHP version: is 8.1.31 FPM served by Apache.

 

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Whoops\Exception\ErrorException: The file /var/www/vhosts/mydomain.com/vendor/whmcs/whmcs-foundation/lib/Installer/Composer/Hooks/ComposerInstallerHook.php encoded as type [1/72] cannot be decoded by this version of the ionCube Loader.
in Unknown:0
Stack trace:
#0 /var/www/vhosts/mydomain.com/vendor/whmcs/whmcs-foundation/lib/Utility/Error/Run.php(0): WHMCS\Utility\Error\Run->handleError()
#1 [internal function]: WHMCS\Utility\Error\Run->handleShutdown()
#2 {main}

[WHMCS John]

@Cloudify,

Please see the solution in this post: