Hi,
Thank you for the link and the details.
I have checked the site front-end on mobile/tablet devices, and clicked on the search icon on the top right section, however it only opens a black layout over the screen like so: https://i.imgur.com/5NuQI89.png
I disabled ajax search pro to see if it affects it in any way, but the same overlay was displayed without a change. Since the problem persist when the plugin is inactive, I think it might be caused by something else. Let me know if the issue is something else, or if I need to check it differently. Thank you!