陀螺浆1.7启动报错

Fatal error: Uncaught Error: Call to undefined function Hhxsv5\LaravelS\Console\shell_exec() in /www/wwwroot/company.yangguangzhinuo.com/vendor/hhxsv5/laravel-s/src/Console/Portal.php:317

Stack trace:

#0 /www/wwwroot/company.yangguangzhinuo.com/vendor/hhxsv5/laravel-s/src/Console/Portal.php(293): Hhxsv5\LaravelS\Console\Portal::makePhpCmd()

#1 /www/wwwroot/company.yangguangzhinuo.com/vendor/hhxsv5/laravel-s/src/Console/Portal.php(327): Hhxsv5\LaravelS\Console\Portal::makeArtisanCmd()

#2 /www/wwwroot/company.yangguangzhinuo.com/crmeb/swoole/laravels/Portal.php(62): Hhxsv5\LaravelS\Console\Portal::runArtisanCommand()

#3 /www/wwwroot/company.yangguangzhinuo.com/vendor/hhxsv5/laravel-s/src/Console/Portal.php(59): crmeb\swoole\laravels\Portal->start()

#4 /www/wwwroot/company.yangguangzhinuo.com/vendor/symfony/console/Command/Command.php(291): Hhxsv5\LaravelS\Console\Portal->execute()

#5 /www/wwwroot/company.yangguangzhinuo.com/bin/laravels(10): Symfony\Component\Console\Command\Command->run()

#6 {main}

 thrown in /www/wwwroot/company.yangguangzhinuo.com/vendor/hhxsv5/laravel-s/src/Console/Portal.php on line 317

请教是哪里配置出了问题？

启动命令：