I have taken a look at your site.
The HTML code of your slider is in your source.
Did you make any modification to WordPress setup?
May I know why your website URL resolves to http://alhulafa.com/index.php/main/
You files are loading from http://alhulafa.com/wp-content/themes/alora/style.css
different domain name structure. This can cause weird issues.
Please revert back any modifications to WordPress such as adding codes in .htaccess files…. and see if your issue is fixed.