Plugin Breaks Theme

I purchased this plugin and when I activate it my main menu stops working correctly. The sub menu does not load with the plugin activated. As soon as I deactivate the plugin it works again correctly.

As well as this any existing pages I have created using Tatsu with images displayed in a multi column row stop displaying. Once I deactivate the plugin it works fine.

As I had no way of testing this without buying the plugin it is disapointing. Is there a fix for this? I am using the Oshine theme and tatsu editor. However for some pages I am using the Gutenburg editor.