When encountering a WordPress plug-in problem, first confirm whether it is caused by the plug-in. 1. Switch to the default theme and test whether the problem persists; 2. Use the "disable one by one method" to troubleshoot specific plug-ins; 3. Check the plug-in version and compatibility; 4. Turn on the debug mode to view the error log; 5. Use the troubleshooting plug-in to assist diagnosis. Step by step investigation in order can accurately locate the root cause of the problem and avoid blind operations.

If you encounter problems with the WordPress plug-in, don’t rush to uninstall and reinstall it. First figure out which plug-in is causing the problem, and then prescribe the right remedy.

Confirm that the problem is caused by the plug-in

Sometimes a website slows down, functions fail, or a white screen appears. This is not necessarily a plug-in problem. You can try switching to the default theme (such as Twenty Twenty-Four) first to see if the problem persists. If the problem goes away, it's probably a theme conflict; if it's still there, it's time to troubleshoot the plugin.
The most commonly used method is the "disable one by one method": go to the backend > plug-in page, disable the plug-ins one by one, one at a time, refresh the front desk to see if the problem is solved. Although this is a bit time-consuming, the accuracy is high.

Check the plugin for updates or compatibility issues

Many plugin problems are actually caused by the version being out of date or incompatible with the current WordPress version. You can see at a glance which plugins need to be updated in the plugin list. Click to see the plug-in details page, which usually states the supported WordPress versions and PHP requirements.
If you have recently upgraded WordPress or PHP and a certain plugin starts reporting errors, it is most likely a compatibility issue. At this time you can consider:

• Roll back WordPress or PHP to a previous version (temporary solution)
• Check the plug-in’s official website or support forum to see if there are any corresponding solutions.
• Contact the plug-in developer to report issues

Some plug-ins have not been updated for a long time. In this case, it is recommended to find replacement plug-ins.

Check the error log to locate specific issues

WordPress itself will not actively tell you which line of code is causing the problem, but you can get more information by turning on debug mode.
Find this line in the wp-config.php file:

 define('WP_DEBUG', false);

Change to:

 define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);

After saving, refresh the page, and then go to the debug.log file in the wp-content directory to view detailed error information.
This method is suitable for people with a certain technical foundation, but even if you just copy and paste the error message and search it on a search engine, you can still find a lot of clues.

Try using the troubleshooting plugin

If you don’t want to manually disable plug-ins one by one, you can use some tools specifically designed to troubleshoot plug-in conflicts, such as officially recommended plug-ins such as Health Check & Troubleshooting . It can temporarily disable all plugins without affecting other users and provides an isolated environment for testing issues.
The benefits of this type of plug-in are:

• Will not affect real user access
• Can be restored with one click
• Has built-in diagnostic information display

But remember to uninstall it after use. After all, one more plug-in means more potential risks.

Basically these are the methods. It is not difficult to troubleshoot plug-in problems. The key is to be patient and take it step by step. Don't mess around when problems arise.

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