Hi dominic,
I am happy to inform you that the issue has been successfully resolved. The theme is now working fine in conjunction with the Visual Composer plugin.
Regarding the theme options, I have discovered that the conflict was caused by the WPML Multilingual CMS plugin. To resolve this, you can simply disable the plugin and the theme should function as intended.
I hope this resolution meets your satisfaction and if you have any further issues or concerns, please don't hesitate to reach out to me. I am always here to help and ensure a smooth experience with us.
Best regards