WHMCS v9.0

[iSurcouf]

After upagre to WHMCS v9.0, module is not working.

Concerned page : clientarea.php?action=productdetails&id=XXX
Error :
Whoops\Exception\ErrorException: Declaration of ModulesGarden\PlanetHoster\Core\Http\Request::getScheme() must be compatible with Symfony\Component\HttpFoundation\Request::getScheme(): string in /home/svncjumb/public_html/modules/servers/PlanetHoster/core/Http/Request.php:17
Stack trace:
#0 /home/svncjumb/public_html/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}