You have visual errors that are related to your theme. Our products and services are not applied to the layout stylizing of custom and premium WordPress themes. All standard WordPress themes support our plugins. You can test it by installing any standard WordPress theme (Twenty Nineteen or Twenty Twenty).
We are not responsible for differences between custom and official standard themes. We understand that not every user can edit styles and add necessary changes to the plugin template manually, and that is why you can request a paid programming service from our team in order to adjust the plugin for your WordPress theme. Of course, if you have enough programming skills then you are able to complete all necessary modifications easily.
This article related to Portfolio by BestWebSoft plugin
Additional resources: Portfolio - User Guide
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