Sirius\Upload\Container\Local::ensureDirectory PHP Method

    protected function ensureDirectory($directory)
    {
        if (!is_dir($directory)) {
            /**
             * change prefix directory from 766 to 755:
             * 755 is the way to go because the User need the execute flag to enter the directory.
             * Same issue with 766 if the Web user is either Group or Others. 6 = read/write and lack the execute flag.
             * So 766 wont work if the web server is not the owner of the directory.
             */
            mkdir($directory, 0755, true);
        }
        return is_dir($directory) && $this->isWritable();
    }