I will fix checkout errors and setup secure payment gateway integration


About this gig
Stop Losing Sales to Checkout Errors!
Is your checkout page failing? Are customers abandoning carts because of "Payment Failed" messages? A broken payment gateway isn't just a glitch its lost revenue and a damaged reputation.
Hi! I'm a professional E-commerce Developer specializing in secure payment gateway integration and technical troubleshooting. Whether you need a fresh setup or a complex API fix, I ensure your transactions are seamless, secure, and PCI compliant.
What I Can Do For You:
- Full Integration: Stripe, PayPal, Authorize.net, 2Checkout, and Square.
- Error Fixing: Resolve checkout crashes, "Invalid API Key" errors, and payment loops.
- Platform Expertise: Shopify, WooCommerce, WordPress, WIX, and Custom PHP sites.
- Webhook Setup: Ensure orders are marked "Paid" instantly and notifications trigger correctly.
- Security Audit: Professional configuration to prevent fraud and protect data.
Why Trust Me?
- Expert Troubleshooting: I find the bugs other developers miss.
- Conversion Focused: I optimize the UI/UX for a faster checkout flow.
- Reliable Support: 24/7 communication and post delivery assistance.
Message me now, and lets get your payments running perfectly
Get to know Amaya Galindo
Certified Payment Gateway Expert, Stripe, PayPal and Ecommerce Specialist
- FromNigeria
- Member sinceJun 2026
Languages
English, French, German, Spanish
FAQ
Which payment gateways can you integrate?
I specialize in all major global providers, including Stripe, PayPal, Authorize.net, Square, 2Checkout, Braintree, and Paystack. Whether it’s a standard credit card checkout or a specialized gateway, I can handle the API configuration and technical setup.
Can you fix the "Payment Failed" or "Checkout Error" on my site?
Yes! This is one of my core services. I will troubleshoot your API keys, webhook secrets, and plugin conflicts to identify exactly why your checkout is failing. I ensure your payment flow is smooth and error free to prevent cart abandonment.
Will my website and customer data be secure?
Absolutely. Security is my top priority. I ensure all integrations are PCI DSS compliant and use secure API protocols. I also check that your SSL certificate is properly communicating with the gateway to protect sensitive financial data.
Do you provide account creation or verification services?
No, I do not provide account creation, "verified" accounts, or stealth accounts. To comply with Fiverr’s Terms of Service and Financial Regulations, you must have your own active account with the provider. My role is to professionally integrate and configure your existing account into your website.
Why are my orders not marking as "Paid" after a successful transaction?
This is usually a Webhook or IPN (Instant Payment Notification) issue. I will configure the communication between your payment gateway and your website's database so that orders are updated instantly, emails are sent to customers, and your inventory is managed correctly.
Can you set up recurring payments or subscriptions?
Yes. I can configure subscription models, membership billing, and recurring billing cycles using Stripe Billing, PayPal Subscriptions, or WooCommerce Subscriptions. I ensure the logic for automated charging is set up perfectly.
Do you work with custom coded websites or just Shopify/WordPress?
I work with both! While I am an expert in Shopify, WooCommerce, and WIX, I also provide custom API integration for sites built with PHP, Laravel, or JavaScript. Please message me first if you have a custom-built site so I can review your code.

