Facing issue after updating WordPress plugin

[myasetonlicd4d]

Hello everyone,

I'm encountering an issue after updating the SEO Optimization plugin. The error message is as follows:

Uncaught ReferenceError: wpData is not defined at main.js:12:56

This error occurs on my blog's homepage, and now the entire page is not rendering properly—it's just showing a blank screen. I've tried deactivating the plugin and clearing the cache, but no luck so far. Has anyone experienced a similar issue, and do you know how to fix it?

Thanks for your help!
Chris,
Frequent Contributor

[maryamhass0882]

Hi Chris,

It sounds like you're dealing with a JavaScript error related to the SEO Optimization plugin after its update. The "Uncaught ReferenceError: wpData is not defined" message suggests that there's a script conflict or a missing dependency in the plugin. Here are a few steps you can take to troubleshoot and hopefully resolve the issue:

1. Deactivate the Plugin: Since you've already tried deactivating the plugin and it didn’t help, ensure it’s completely disabled. You might need to do this via FTP or your hosting provider's file manager if the dashboard is inaccessible.

2. Check for JavaScript Errors: Use your browser's developer tools (F12) to check for any other JavaScript errors that may provide clues.

3. Restore a Backup: If you have a recent backup of your site, consider restoring it to a point before the plugin update.

4. Update Other Plugins and Themes: Sometimes, other plugins or themes can conflict with updates. Ensure everything is updated to the latest versions.

5. Contact Plugin Support: If the issue persists, reach out to the plugin’s support team. They may have encountered this issue before and can offer specific guidance.

6. Consider Alternatives: If the problem remains unresolved, you might need to look for alternative SEO plugins that provide similar functionality without conflicts.

For more detailed troubleshooting, you can check out resources like WordPress site or relevant forums.

Good luck, and I hope your site is back up and running soon!

[kubernates0a64]

Chris, a frequent contributor, shared that after updating the SEO Optimization plugin on WordPress, they encountered an error: "Uncaught ReferenceError: wpData is not defined at main.js:12:56." This issue caused their blog's homepage to render as a blank screen. Despite deactivating the plugin and clearing the cache, the problem persisted. Chris is seeking advice from others who might have faced a similar issue or know how to resolve it.

[puladdavid2e4b]

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@myasetonlicd4d Suneel Maghani wrote:

Hello everyone,

I'm encountering an issue after updating the SEO Optimization plugin. The error message is as follows:

Uncaught ReferenceError: wpData is not defined at main.js:12:56

This error occurs on my blog's homepage, and now the entire page is not rendering properly—it's just showing a blank screen. I've tried deactivating the plugin and clearing the cache, but no luck so far. Has anyone experienced a similar issue, and do you know how to fix it?

Thanks for your help!
Chris,
Frequent Contributor

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The error “Uncaught ReferenceError: wpData is not defined” suggests that a required JavaScript variable isn’t loaded before main.js executes, likely due to improper script enqueueing after the plugin update. Try rolling back the plugin, checking script dependencies, or contacting the developer, especially if the issue began immediately after updating.

[sameerkhan0b58]

Hey Chris,

That’s definitely frustrating—especially when a simple plugin update breaks the entire homepage. The error:

Uncaught ReferenceError: wpData is not defined at main.js:12:56

usually means that the plugin’s JavaScript is trying to use a variable or object (wpData) that hasn’t been initialized or loaded properly—likely due to a script dependency or enqueueing issue introduced in the update.

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🔧 Here's What You Can Try:

1. Roll Back the Plugin:

   • If you have a backup, try restoring the previous version of the SEO Optimization plugin. You can also download an older version from the plugin’s page on WordPress.org under the “Advanced View” section.

2. Check Theme Compatibility:

   • Some themes enqueue scripts differently. If you're using a custom theme (I’ve seen this happen with a client from an interstate moving site I manage), the theme might be preventing required plugin scripts from loading in the right order.

3. Use wp_enqueue_script Properly:

   • If you're comfortable editing your theme or plugin, make sure the plugin’s script dependencies are correctly defined (e.g., wp_enqueue_script('plugin-main-js', ..., array('jquery', 'wp-data'), ...)).

4. Enable WP_DEBUG:

   • Set define('WP_DEBUG', true); in your wp-config.php file to get more insight into where the error is coming from.

5. Contact Plugin Developer:

   • Report the bug. Since this broke your front page, they may already have a patch in the works or a workaround.

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Let me know if you’d like help writing a rollback script or debugging further!