Quick answer
A WordPress plugin conflict happens when two plugins (or a plugin and your theme) interfere with each other — usually after an update. The symptoms range from broken layouts to complete site failure. The fastest way to catch conflicts before visitors do is to monitor plugin status changes automatically and test updates in a staging environment before applying them to your live site.
WP Canary’s plugin watchdog monitors every plugin on your site — free forever. Get notified the moment something deactivates, updates, or changes.
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