My Magento store has suddenly stopped loading and is only throwing a 504 Gateway Timeout. I haven’t changed any code or server settings recently, so I need a fresh pair of eyes to locate and eliminate the bottleneck as quickly as possible. The shop runs on a VPS and I can provide full SSH access along with Magento admin credentials, database login, and any server logs you need. I expect the successful freelancer to: • Pinpoint the exact cause of the 504 (whether it stems from Nginx/Apache, PHP-FPM, database load, or a Magento module). • Restore normal page load so the storefront and admin panel both open without errors. • Share a brief summary of the root cause and the steps you took, so I can avoid the same outage in future. If you can jump in right away and have solid Magento + Linux server-side troubleshooting skills, you’re the person I need.