WordPress Plugin Conflict Breaking My Contact Forms
-
Hi everyone,
I’m having a strange issue on my WordPress website (Jackpot joy Casino) where my contact forms suddenly stopped working after installing a few new plugins. The forms display correctly on the front end, but submissions either fail completely or never reach my email inbox.
I’ve already tried several things:
- Deactivating recently installed plugins
- Switching to a default WordPress theme
- Checking SMTP settings
- Updating WordPress, plugins, and PHP
- Clearing all cache
The problem seems to appear only when certain plugins are active together, so I suspect there’s a plugin conflict happening somewhere.
Has anyone experienced something similar?
What’s the best way to identify exactly which plugin is causing the issue without manually testing dozens of combinations?
Any advice or troubleshooting methods would be greatly appreciated. Thanks!
-
Since you’ve already verified your SMTP configuration and suspect a multi-plugin conflict, the fastest way to pinpoint the issue without testing every single combination is to perform a binary isolation test. Keep your contact form and SMTP plugins active, but deactivate half of your remaining plugins at once and test a submission. If the form works, the culprit is in the deactivated half; if it fails, the culprit is in the active half. Repeat this process by cutting the problematic group in half each time—you will isolate the exact conflicting plugin in just a few steps! Additionally, check your WordPress dashboard under Tools > Site Health > Info > Logs (or check your hosting panel’s error_log file) right after a failed submission. Look for any JavaScript or PHP Fatal Errors referencing hooks like wp_mail or administrative AJAX restrictions, which will point you directly to the offending plugin line.
WordPress.com Forums 