The output file's directory '***' could not be created

1、文件夹的权限我给了755，甚至777都试过了
2、文件夹我就算手动创建好都不行

错误提示

The output file's directory '/uploads/credit/recharge' could not be created
1.  exception: "RuntimeException"
2.  file: "/www/wwwroot/zhaiyanyan.com/vendor/knplabs/knp-snappy/src/Knp/Snappy/AbstractGenerator.php"
3.  line: 578
4.  message: "The output file's directory '/uploads/credit/recharge' could not be created."

AbstractGenerator.php第578行写的是,这里也是尝试建立文件夹，但是没有权限

if (!$this->isDir($directory) && !$this->mkdir($directory)) {
    throw new \RuntimeException(sprintf(
                'The output file\'s directory \'%s\' could not be created.',
                $directory
            ));

所以，还有可能是什么问题

controller（SnappyImage会自动创建文件夹的）

SnappyImage::loadHtml('***')
                ->setOption('width', 1200)
                ->save('/uploads/credit/recharge/'.Auth::id().'.jpg');