Fix Magento Checkout Issues

Job ID: 40014735

Budget: €30 – €250 EUR

Our live Magento store suddenly refuses to push shoppers past the checkout screen. Does not add to cart and if it does checkout leads to error screens.

I need someone who knows Magento 2 checkout internals, payment gateway integrations, JavaScript validation and server-side logs to trace the bottleneck, patch the problem, and prove the fix with a successful test order. Please be comfortable digging through exception logs, inspecting core vs override files, and clearing any cache or index conflicts without disturbing current data.

Deliverable:
• A fully functional checkout—end-to-end payment—verified on both desktop and mobile.

Let me know your typical turnaround time and how you prefer to receive temporary access so we can get this resolved fast.