I will fix shopify bugs, customize your theme, and troubleshoot shopify issues

M
markjohn235
M
markjohn235
Mark john
fix shopify bugs, customize your theme, and troubleshoot shopify issues
Full Screen
fix shopify bugs, customize your theme, and troubleshoot shopify issues
Full Screen
Full Screen
fix shopify bugs, customize your theme, and troubleshoot shopify issuesfix shopify bugs, customize your theme, and troubleshoot shopify issuesfix shopify bugs, customize your theme, and troubleshoot shopify issues

About this gig

Is your Shopify store showing errors, broken sections, layout issues, or theme problems that are hurting the customer experience?


Even a small bug can make your store look unprofessional, interrupt the buying journey, or prevent customers from completing checkout.


I specialize in Shopify bug fixing, theme customization, troubleshooting, and custom coding, with a practical focus on stable, clean solutions.

Before: frustrating errors, broken layouts, or features that don't work as expected.

After: a cleaner, smoother Shopify store that works properly across desktop and mobile.


Here's exactly what you get:

  1. Shopify bug diagnosis and fixing
  2. Theme layout and design corrections
  3. Shopify Liquid customization
  4. HTML/CSS/JavaScript fixes
  5. Mobile responsiveness fixes
  6. Custom Shopify functionality
  7. Testing after implementation


You'll receive clear communication, careful implementation, and solutions focused on fixing the root issue not temporary workarounds.


If you need reliable Shopify bug fixing or custom theme support, contact me before sending me the issue and I'll assess the best solution for your store.

  • Website type

    • E-Commerce store

  • Website features

    • Marketing
    • Forum
    • Customer support
    • Shipping
    • Analytics
    • Form
    • Map
    • FAQ
    • Booking

  • Plugins

    • Free Shipping Bar
    • Product Reviews
    • Product Filter & Search
    • Store Locator
    • PageFly
    • Smart SEO
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 Mark john

Mark john

Shopify Store Optimization Specialist, CRO and eCommerce Consultant

  • FromUnited Kingdom
  • Member sinceJan 2026

  • Languages

    English, German
I help Shopify store owners improve conversions, user experience, and overall store performance through detailed Shopify audits and optimization. I analyze your store's design, navigation, mobile experience, trust signals, speed, and customer journey to identify what's limiting sales. You'll receive clear, actionable recommendations to enhance your store, build customer trust, and support long-term business growth.

My Portfolio

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