WooCommerce care service

WooCommerce Error & Plugin-Conflict Fix

Cmsmart finds and fixes errors on your WooCommerce store: critical errors and white screens, broken cart or checkout, admin pages that will not load, PHP and JavaScript errors, and conflicts between plugins or with your theme. We reproduce the problem on a copy, fix the cause, test ordering and report what changed.

Engagement
Scoped quote, then milestones
Timeline
1-5 days
Category
Web development
Delivered by
Cmsmart Ecommerce
Ticket conversation with project details in the Cmsmart dashboard
Each fix is tracked in a ticket thread. Demo data.

In short

How do I fix a WooCommerce critical error or broken checkout?

Cmsmart finds and fixes WooCommerce errors such as critical errors and white screens, broken cart or checkout, admin pages that will not load, PHP and JavaScript errors and plugin or theme conflicts. We reproduce the problem on a staging copy, fix the root cause, test ordering and report what changed. It is quoted per project after a free scoping call.

Key facts: WooCommerce Error & Plugin-Conflict Fix
ScopeDiagnosing and fixing WooCommerce errors and conflicts between plugins or with your theme, reproduced on a staging copy.
What you getA working store with the root cause fixed and ordering flows tested, plus advice on preventing a repeat.
Typical inputsAdmin, hosting and log access, steps to reproduce with screenshots, and whether orders are affected right now.
DeliverablesThe fix, deployed with a backup, and a written report of cause, change and test results.
How pricing worksQuoted per project after a free scoping call. You see the scope and estimate in writing before any work starts.

How it works

How a fix runs

How a fix runsEvery request is a ticket in your dashboard, with the history of the store kept in one thread.Ticket1Diagnose2Fix3Test4Live andfollowed up5How a fix runsEvery request is a ticket in your dashboard, with the history of the store kept in one thread.Ticket1Diagnose2Fix3Test4Live and followed up5
How a fix runs. Every request is a ticket in your dashboard, with the history of the store kept in one thread.

About this service

For store owners who see errors after an update, lose orders because checkout fails, or have an issue nobody has been able to explain.

Scope

  • Triage: error logs, recent changes and the exact steps that trigger the problem.
  • Reproduce on a staging copy.
  • Root cause: plugin conflict, theme template override, PHP version, custom code or server setting.
  • Fix by configuration, code patch or replacing the faulty component.
  • Regression test: cart, checkout, payments, customer accounts and order emails.
  • Written report with prevention advice.

Deliverables

  • The fix, deployed with a backup.
  • A report of cause, change and test results.

What you provide

  • Admin, hosting and log access.
  • Steps to reproduce, screenshots and when it started.
  • Whether orders are affected right now.

Proof and related services

See delivered client stores in our project portfolio. Related: plugin installation and conflict resolution, update and compatibility upgrade and support and maintenance.

Cmsmart Ecommerce is a Netbase JSC company, building ecommerce stores since 2012: 500+ custom ecommerce projects since 2012, including long-term engagements of 5–7+ years. A dedicated Ecommerce Account Manager team provides the consulting, and every project runs in your Cmsmart dashboard, with tickets, tasks, milestones and invoices in one place.

As of Sep 2026. Source: WorkSuite project records, Netbase portfolio library.

Next step

Get a custom plan: tell us about your store and goals and we reply with a tailored proposal covering scope, approach and cost, with no obligation. Get a custom plan →

Terms of Service

Scope, timeline and terms

Timeline

  • Typically 1–5 business days from access to a tested fix, depending on the cause.
  • Tell us if checkout is down, so the work can be planned around it.
  • Your exact timeline is confirmed in your ticket or proposal.

Terms

  • Scope, price and timeline are confirmed in a written proposal before any work starts.
  • We work on a staging copy, or take a full backup before touching your live store.
  • Communication, approvals and change requests run through tickets in your Cmsmart dashboard.
  • Third-party licences (themes, plugins, fonts, hosting) are not included unless the proposal lists them.
  • You own the code and content we build for you.
Talk to an ecommerce expert

Plan your project with our founder

David, Founder & CEO of Cmsmart

Huy Nguyen (David)Founder & CEO, Cmsmart · Netbase JSC

“Tell me about your project — I read every request personally.”
  • Free scoping call with an ecommerce consultant
  • Written proposal with scope and estimate before any work
  • Since 2012 · 6,300+ client projects in 80+ countries

Scope

Included, not included, and extra

Clear lines before you start. The final scope is written into your proposal.

Included

  • Triage of error logs, recent changes and trigger steps
  • Reproduction of the problem on a staging copy
  • Root cause: plugin conflict, theme override, PHP version, custom code or server
  • Fix by configuration, code patch or replacing the faulty component
  • Regression test of cart, checkout, payments, accounts and order emails
  • Written report with prevention advice

Not included

  • Third-party licences (themes, plugins, fonts, hosting) unless the proposal lists them

Extra, quoted separately

  • Ongoing care through the separate support and maintenance plan

What we need from you

  • Admin, hosting and log access
  • Steps to reproduce, screenshots and when it started
  • Whether orders are affected right now

The team behind it

A dedicated team runs your project

  • Cmsmart Account Manager, portraitAccount Manager
  • Cmsmart Project Manager, portraitProject Manager
  • Cmsmart Business Analyst, portraitBusiness Analyst
  • Cmsmart Developers & QA, portraitDevelopers & QA
  • Scoped first by an Account Manager and a BA
  • Milestones and sprints tracked in WorkSuite
  • Support and growth after launch

How it works

How we run your project

The same WorkSuite-backed flow you see in your cmsmart.net dashboard, from first request to handover.

  • Step 1

    Free assessment

    You submit a request at project-proposal and an ecommerce expert reviews your requirements, free and with no obligation.

  • Step 2

    Proposal & estimate

    A written scope and estimate before any work starts -- you can see it in your dashboard.

  • Step 3

    Milestones & tasks

    Your project runs as milestones and tasks with a project manager; progress is visible in your dashboard.

  • Step 4

    Milestone payments

    Payment terms are set per project in your proposal; each milestone is invoiced in your dashboard and paid online.

  • Step 5

    Support tickets

    Questions and change requests go through tickets in your dashboard, with your project's history kept.

  • Step 6

    Handover & maintenance

    Before changes go live, you agree with your project manager how the store is backed up and how a change is rolled back. After delivery and testing, optional maintenance and backup are available.

How we run projects
Request a quote

Get a scoped proposal for WooCommerce Error & Plugin-Conflict Fix

Every store is different, so we quote each project after reading your brief. You see the scope, estimate and timeline in writing before any work starts.

What you get

  • Free scoping call with an ecommerce consultant
  • Written proposal with scope, deliverables, estimate and timeline
  • A milestone plan run by a dedicated project manager
  • Progress, files and invoices in your cmsmart.net dashboard

How the quote works

  1. Send your brief

    Tell us about your store, goals and platform in three short steps. The form opens already set for this service.

  2. Scoped proposal and estimate

    We reply with a written scope and estimate that you can review and approve in your dashboard.

  3. Milestones

    The work runs in milestones with tasks and a project manager. Each milestone is reviewed and invoiced in your dashboard.

Real numbers, real clients

Trusted by store owners in 80+ countries

What we have delivered since 2012, and what customers say about working with us.

  • 6,300+ client projects since 2012
  • 4,600+ projects delivered since 2012
  • 1,800+ live stores online now
  • 80+ countries clients worldwide
  • 500+ custom development projects since 2012
  • 120+ engagements running 5+ years ongoing support

Since 2012 · a Netbase JSC company · as of Sep 2026 · source: WorkSuite project records

Teams in 80+ countries run their ecommerce projects with Cmsmart

Greate Support, Greate Product with a lot of options. We was surprise, the the support work perfect and fast. Thanks

CybeRyder CopyShop CybeRyder CopyShop Germany May 2021
Verified on Trustpilot

Great plugin and team that help to make the e-store stand out of the crowd in this competitive ecom space!

Will Tan Will Tan Singapore Mar 2021
Verified on Trustpilot

Cmsmart was really easy to install onto our website. Customer service were able to answer any queries we had very quickly and so we got this up and running in a short space of time. The theme and plugin from Cmsmart is really simple to use, friendly dan very powerfull. Overall, it's been a great experience so far! Would highly recommend

tendi rahmat tendi rahmat Indonesia Mar 2021
Verified on Trustpilot

Read more testimonials Delivered & maintained with WorkSuite: tickets, tasks, milestones and invoices in one place. See how it works

Who you work with

The team behind Cmsmart and its published work

  • 2012Netbase since 2012Cmsmart Ecommerce is a Netbase JSC company
  • 17,134proposals writtenin our project system, live count

Proposals: records in our Cloodo WorkSuite project system, all-time, refreshed every 6 hours.

Stores on Cmsmart Ecommerce

  • Customer logo: reprotel.com
  • Customer logo: aptexstore.com
  • Customer logo: imprimup.fr
  • Customer logo: graphicsfamily.com
  • Customer logo: spacelaab.com
  • Customer logo: fiorentinomauro.com
  • Customer logo: classymag.pl
  • Customer logo: daisydigital.de

FAQ

Frequently asked questions

Common questions about this service.

Do you need access to my live store?

We need logs and admin access to diagnose, but we reproduce and fix on a staging copy wherever possible.
WooCommerce Error & Plugin-Conflict FixRequest a quote