AWS S3 Bucket Configuration (error on refresh of web app)

I have my app hosed on AWS in and S3 bucked. However, when I refresh any page, I get an error (https://app.nonfungible.wtf/). I believe this is because the AppGyver app’s URL does not include .html.

This same error does not happen with the https://nonfungible.appgyverapp.com/ hosted version, and since my understanding is that AppGyver hosts our apps on AWS S3, there must be a configuration I am missing on S3 that is causing this error.

Can someone please help point me to a solution?

Thank you!

Hi @Harri_Sarsa or @Mari would you have any insight here please?

Thank you!