Title: A JavaScript problem
Last modified: July 16, 2021

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# A JavaScript problem

 *  Resolved [lazsony](https://wordpress.org/support/users/lazsony/)
 * (@lazsony)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/a-javascript-problem/)
 * Hi,
 * My website is having issues. Everything suddenly stopped working, so I installed
   Query Monitor and it detected the following error
 * “A JavaScript problem on the page is preventing Query Monitor from working correctly.
   jQuery may have been blocked from loading. GET [https://www.example.com/wp-admin/update-core.php](https://www.example.com/wp-admin/update-core.php)
   → 200”
 * How can I resolve this problem??
 * Thank you.
    -  This topic was modified 4 years, 10 months ago by [lazsony](https://wordpress.org/support/users/lazsony/).

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [mark l chaves](https://wordpress.org/support/users/mlchaves/)
 * (@mlchaves)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/a-javascript-problem/#post-14672521)
 * Hi [@lazsony](https://wordpress.org/support/users/lazsony/),
 * Have you checked your browser console to confirm if you’re getting JavaScript
   errors? Have a look at this guide if you don’t know how to do that.
 * [https://wordpress.org/support/article/using-your-browser-to-diagnose-javascript-errors/#step-3-diagnosis](https://wordpress.org/support/article/using-your-browser-to-diagnose-javascript-errors/#step-3-diagnosis)
 * You could also **deactivate** all of your 3rd party plugins. If that fixes it,
   you’ll need to **re-activate** your plugins one-by-one until the issue comes 
   back. The last plugin you activated is most likely the culprit. You can then 
   reach out to the plugin’s author.
 * Lastly, you can try to deactivate all plugins and switching to the default **
   Twenty Twenty-One** theme. If the problem goes away, that means you probably 
   have a theme error. You can reach out to the theme author if that happens.
 * I hope that helps 🙂
 *  Thread Starter [lazsony](https://wordpress.org/support/users/lazsony/)
 * (@lazsony)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/a-javascript-problem/#post-14673364)
 * I have discovered the conflicting plugin (WooCommerce Smart COD) and I have uninstalled
   it.
    Everything is working fine now.
 * Thank you very much.
 *  [mark l chaves](https://wordpress.org/support/users/mlchaves/)
 * (@mlchaves)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/a-javascript-problem/#post-14674151)
 * Hi [@lazsony](https://wordpress.org/support/users/lazsony/),
 * You’re very welcome. We’re glad things are working now.
 * Have a great day 🙂

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘A JavaScript problem’ is closed to new replies.

## Tags

 * [javascript problem](https://wordpress.org/support/topic-tag/javascript-problem/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [mark l chaves](https://wordpress.org/support/users/mlchaves/)
 * Last activity: [4 years, 10 months ago](https://wordpress.org/support/topic/a-javascript-problem/#post-14674151)
 * Status: resolved

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