Sorry to hear that, Francesco.
Per our Scope of Support / Terms, we do not guarantee support with any themes. However, we know customers who use many, many themes that do not conflict with our plugins.
Thank you very much for your understanding.
One thing that may help is if you provide a link to your site and describe in your own words what the issues are (even including an annotated screenshot or video screen capture), it might help communicate what you’re seeing and what exactly the issue is.
Then, also provide me a copy of the theme to install on my local test site and I might be able to see what is causing the issues that you need help with.