Hi Salvador,
Thanks for reaching out to us! Unfortunately we are not able to provide support in the pre-sales forum 🙁
We are happy to assist our premium users with support issues via our premium forums, please log into the account that has been created when the purchase was made. If you have not purchased one of our premium plugins, you can post in our open source forum. We review that forum weekly, mainly for bug reports.
Taking a quick look to the site, the error seems to be related to JavaScript issues more than CSS conflicts. Check the browser console to see the actual error descriptions and try to solve this.
I’ll go ahead and close out this thread, but please do post in the appropriate forum and we will be happy to assist you.
Best,
Nico