After I looked into the situation, I found that the “Ajax add to cart” option is incompatible with the plugin so please disable it and the product page will work as on the default theme.
This is not help me, or fix the issue.
If i disable it i lose the functionality of Ajax and all feature. It is like tell me, change theme.
Could you please check it again, mayber with a patch we can fix it.
Or if you explain me the problem, i can send on fancy plugin to help you with more details.
Unfortunately, the “AJAX add to cart” does not work with any plugins that add their own custom fields. In the description of this option, it is indicated.
In the meantime, feel free to ask me any questions you may have.