The plugin will not generate your icons and images, you will have to upload those to the weweb project and replace them.
Are you using the tagging features in the plugin? Select the frame you want as a button, tag it as a button and then it will be impored as a button in WeWeb.
I tried importing a few sections from your design and the result is not perfect, but with a little weweb work it could look exactly like your Figma
I can help you but please provide exact section you’re exporting and concrete problems you’re facing