@TubiOb My wild guess is that you just aren’t deploying the images:
Your images are in build/assets, but you’re probably deploying build/public.
Only the files in the Publish directory get deployed.
Your reference to ../assets/Insurance provider card.png for example would exist locally, but not on Netlify.
Make sure whatever files you want to deploy are in your Publish directory and that your file paths are set accordingly.