Hello @joanlaura404 ,
Thank you for your patience!
I have just checked on your site and the slider is working correctly as seen in the gif below. Could you please clear your cache or check on a different browser?
https://imgur.com/a/QIYvaLy
Please also note that we have just released new updates containing fixes for multiple issues including the issue related to the missing classic widget.
The new versions are Advanced Ads 2.0.2 and Advanced Ads Pro 3.0.1
Please install these updates and let me know how it goes. Ensure you already have the latest versions of the other add-ons and not the older versions before installing any updates. Thank you!