Our team is facing a critical production deployment issue that requires immediate attention from an experienced developer.

We have a web application built with React on the front end and Laravel powering the back end. Everything has been functioning smoothly in the development and staging environments, but when we attempted to deploy to production yesterday, we hit a wall.

The issue seems to be a combination of configuration mismatches and deployment pipeline errors. Specifically:

The front-end React application isn't loading correctly in the production environment, likely due to an environment variable or build configuration problem. And API calls to the Laravel backend are failing intermittently, and we're seeing 500 errors in the logs. Also AWS services involved in the deployment (Elastic Beanstalk, S3, and CloudFront) appear to be misconfigured or are causing unexpected behavior.

We’ve already spent several hours trying to troubleshoot this but could use a fresh pair of experienced eyes to get this resolved quickly.