Take a look at this guide about how to debug unexpected 404’s. TL;DR you probably have no /index.html in your deploy:
I took a quick look at your last deploy and it seems to be the source code for your project. Perhaps you mean to have a base directory set, to frontend/bushbass_frontend ? Looks to me like that may be where you want to start the build…
Hi, @bushbass. Thank you for following up to share the solution.
This is very helpful for other peoples searching the site for solutions and also for our support team so we know if the advice we give is actually helpful or not.