I have strange visual coding above my VFB

I have updated the plugin and updated to WP6 – but I am struggling with the VFB plugin now as it shows strange code above my contact forms which is not great for my online store, I love this plugin as it’s one of the nicest simplest form plugins that work easily for a non-techie – but now it’s really challenging me to find what could be going wrong, and I was about to consider buying or my site.

Is there anyone that can help or guide me on how to resolve this problem – tried scores of other contact forms – but they cannot match up to VFB and the ease of working with forms?

The page I need help with: [log in to see the link]