I will fix shopify payment gateway checkout paypal stripe klarna nmi integration errors


About this gig
Is your Shopify checkout failing, rejecting payments, or preventing customers from completing their orders?
I will diagnose and fix your Shopify payment gateway, checkout, PayPal, Stripe, cart, or payment integration issue. I provide reliable Shopify troubleshooting that helps restore a smooth and secure checkout experience.
MY SERVICES INCLUDE:
- Shopify payment gateway setup
- Shopify checkout error fix
- PayPal and Stripe integration
- Failed or declined payment troubleshooting
- Cart and checkout button fixes
- Shopify Payments configuration
- Third-party payment gateway integration
- API and webhook troubleshooting
- App conflict and checkout bug fixes
- Multi-currency payment issue fixes
- Desktop and mobile checkout testing
WHY CHOOSE ME?
- Fast response and professional support
- Careful diagnosis before making changes
- Clean and reliable solutions
- Complete testing after the fix
- Clear communication and after-delivery support
Please contact me before ordering and describe the payment or checkout issue. I will review it and recommend the correct package.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Daniel
Lovable AI Claude Code and WordPress Migration Expert
- FromUnited States
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Spanish, French, German, Italian
Other Website Maintenance Services I Offer
FAQ
Can you fix my Shopify checkout not working?
Yes. I can diagnose checkout buttons, loading errors, failed payments, cart problems and app conflicts.
Can you set up Shopify Payments?
Yes. I can help configure Shopify Payments and check your payment settings. Final approval depends on Shopify and your eligibility.
Do you integrate PayPal with Shopify?
Yes. I can connect, configure and troubleshoot supported PayPal integrations.
Can you integrate Stripe with my Shopify store?
I can configure supported Stripe or third-party gateway connections where Shopify and your country permit them.
Can you guarantee payment-account verification?
No. Verification decisions belong to Shopify and the payment provider. I provide configuration and troubleshooting assistance.
Can you fix declined or failed payments?
Yes. I will investigate your payment settings, gateway configuration, checkout flow and possible integration conflicts.
Can you fix Shopify cart and checkout bugs?
Yes. I can fix add-to-cart problems, cart drawer errors, broken buttons, variant issues and checkout-related theme bugs.
Can you integrate another payment gateway?
Yes, if the gateway supports Shopify or provides a suitable API. Contact me with the gateway’s name before ordering.
Will you test the checkout after completing the work?
Yes. I will test the relevant payment and checkout flow on desktop and mobile where possible.

