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I will fix cs cart multivendor theme module website bugs and checkout payment errors
Umberto M
About this gig
Stop Losing Sales to Technical Errors!
Is your CS-Cart or Multi-Vendor store acting up? A broken checkout or a slow-loading theme can cost you thousands in lost revenue. Based in Italy, I specialize in professional debugging and performance optimization for the CS-Cart platform.
I will fix your website errors using clean, upgrade-safe code.
What I Can Fix for You:
- Checkout & Payment Errors: Resolve Stripe, PayPal, or custom gateway failures.
- Theme & Layout Bugs: Fix broken UniTheme2/Youpi layouts or CSS issues.
- Module & Hook Conflicts: Repair broken add-ons and core functionality.
- PHP & Database Issues: Solve "White Screen of Death," SQL errors, and server timeouts.
- Multi-Vendor Configuration: Fix vendor dashboard, shipping, and commission bugs.
Why Hire Me?
- Upgrade-Safe: I use the official "Hook" system so your fixes aren't lost during updates.
- E-commerce Expert: I understand the logic behind Multi-Vendor marketplaces.
- Precision: High-quality Italian standards for code and communication.
Please contact me with your URL and bug details before ordering for a custom quote.
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 Umberto M
Umberto M
Ecommerce Website Designer and SEO Specialist
- FromItaly
- Member sinceFeb 2026
Languages
English, Italian
I'm Umberto M, am a website designer, SEO specialist, and ecommerce expert with strong experience creating high converting, search optimized websites. I build fast, user friendly sites and scalable ecommerce stores that help brands grow traffic and increase sales. From modern website design to on page SEO and full ecommerce setup, I focus on performance, clarity, and long term business growth.
FAQ
What details do you need to start fixing the bug?
I require your CS-Cart Admin URL and credentials, along with FTP/SFTP or hosting panel access. Additionally, please provide a clear description (or screenshot) of the error and, if possible, the steps to reproduce it.
Will your fixes disappear when I update CS-Cart?
No. I follow CS-Cart best practices by using the official Hook system and Add-on architecture. This ensures that my changes are kept separate from the core files, allowing you to update your software without losing the fixes.
Can you fix issues with UniTheme2 or Youpi?
Yes. I am highly experienced with premium CS-Cart themes. Whether it’s a layout break, a CSS conflict, or a mobile responsiveness issue, I can restore your theme’s functionality perfectly.
Can you fix Multi-Vendor commission or vendor payout bugs?
Absolutely. I understand the complex logic of the Multi-Vendor edition, including vendor plans, shipping calculations, and automated payouts. I can debug any vendor-side or admin-side functional errors.
