Fix WordPress Plugin/Theme Conflict

The Problem

Something broke right after an update, but with dozens of active plugins it's genuinely hard to know which one is the culprit, and disabling everything to find out isn't something you want to do on a live site.

About this problem

WordPress runs code from the theme and every active plugin in the same PHP process and shares the same hooks, scripts and database tables. Conflicts occur when two components load incompatible versions of a library, change the same filter, enqueue clashing JavaScript or use features removed in a new PHP or WordPress version. An update to any one of them can expose the clash.

People usually look for this after an update when a form, checkout, page builder or menu stops working, or a JavaScript error appears. With many plugins active, testing combinations on a live site is risky and time-consuming.

What's Included

• Systematic isolation testing to identify the exact conflicting plugin/theme
• Checking for a compatible update or safe configuration change
• Implementing a fix or sensible workaround that keeps functionality intact
• Confirming the original problem is resolved with no new issues introduced

What's NOT Included

• Rebuilding a plugin or theme that's genuinely abandoned/incompatible going forward
• Custom development to replace lost functionality (can be scoped separately)
• Fixing every other outdated plugin while we're in there, beyond the conflict itself

How It Works

1. I reproduce the problem and note the exact error, using the browser console and PHP logs.
2. I clone the site or use a safe testing approach so that live visitors are not affected while I disable components.
3. I deactivate plugins in groups and then individually, switching to a default theme where needed, until the problem disappears.
4. I identify the specific clash by checking the conflicting hooks, scripts or PHP errors between the pair.
5. I look for a compatible update or a configuration option, and if neither exists I apply a targeted workaround.
6. I retest the original issue and the surrounding functionality on the live site.

In practice: you buy the service, send over whatever access or details the job needs, I investigate and do the work, and you confirm it's resolved before we call it done.

Frequently Asked Questions

How do I find which WordPress plugin is causing a problem?

Disable plugins one by one, or in groups, and retest. Doing this on a copy of the site avoids disrupting live visitors.

Will you disable my plugins on the live site?

I avoid it where possible by testing on a copy, and I tell you before anything on live is changed.

What if the plugin is abandoned?

I will flag it. Replacing it with something new or custom development is a separate piece of work.

Will you update all my other plugins?

No, only what is needed to resolve the conflict.

Can the problem return after a future update?

It can if the underlying incompatibility remains. I note the cause so you can recognise it.

Do you fix problems with a theme too?

Yes, themes are included in the isolation testing, as long as a configuration or small workaround can resolve it.