After moving my Magento 2 store to an AWS instance the entire site came back online—except for the checkout page, which now hangs on every attempt to load. I updated the database credentials in env.php, flushed caches, re-deployed static content, and re-indexed, yet the issue persists. I’m not completely sure whether all server-specific values in the Magento backend were adjusted for the new environment, so there may still be lingering references to the old host. I need a Magento specialist to pinpoint the root cause and restore a fully functional checkout. You will have SSH and admin panel access to the AWS server (Ubuntu with NGINX, PHP-FPM, MySQL) and full error logs. Please be comfortable working with Composer, CLI tools, and typical Magento troubleshooting steps—mode changes, module conflicts, cache/storage configuration, etc. Deliverable • Checkout page renders and processes orders end-to-end without throwing errors, confirmed in both guest and logged-in flows. • Brief summary of changes applied so I can replicate them in staging.