fatal error

[ForceHSS]

/**
     * Protected constructor to enforce the factory pattern.
     * Ensures the chrome templates have been processed.
    */
    protected function __construct($template_name)
    {
        global $bootstrap;

        if (!empty($bootstrap) AND !$bootstrap->called('template'))
        {
            $bootstrap->process_templates();
        }

        $this->template = $template_name;
    }

line 4040

$this->template = $template_name;