Title: javascript error
Last modified: July 26, 2025

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# javascript error

 *  [Queer as You](https://wordpress.org/support/users/queerasyou/)
 * (@queerasyou)
 * [8 months, 2 weeks ago](https://wordpress.org/support/topic/javascript-error-243/)
 * After updating LearnPress to version 4.2.8.7.4, there are an impressive number
   of JavaScript errors:
 * `Uncaught TypeError: Cannot read properties of undefined (reading 'addEventListener')
   at single-curriculum.min.js?ver=4.2.8.7.4:1:208`
 * And the lesson can’t be displayed!
 * I uninstalled ALL my plugins and found that when I deactivate [**Thim Elementor
   Kit** **version 1.3.2**], the JavaScript errors disappear, but I’m left with 
   a full-screen course, very ugly, without the Elementor content.
 * I’m fed up with updates that don’t work!
 * Can you TEST your latest update with [Thim Elementor Kit] version 1.3.2???
 * Thanks.

Viewing 1 replies (of 1 total)

 *  Plugin Support [brianvu-tp](https://wordpress.org/support/users/briantp/)
 * (@briantp)
 * [8 months, 2 weeks ago](https://wordpress.org/support/topic/javascript-error-243/#post-18573311)
 * Hi Queer as You,
 * Thank you for reaching out and sharing your frustration regarding the JavaScript
   errors after updating LearnPress to version 4.2.8.7.4.
 * We have tested LearnPress 4.2.8.7.4 with Thim Elementor Kit 1.3.2 on our end,
   and we [haven’t been able to replicate](https://www.awesomescreenshot.com/image/55663909?key=78646a6fff23b1cbbdf2c1bcffdd3419)
   the specific JavaScript error or the issue with [the lesson](https://www.awesomescreenshot.com/image/55663918?key=0cca0a6ffd736687ad8edacfd16b5729)
   not displaying correctly.
 * To help us diagnose this problem accurately on your site and provide you with
   a precise solution, could you please provide us with the following information:
    1. **Which theme are you currently using?**
    2. **A direct URL to a lesson page** where you are experiencing this issue.
 * With this information, we’ll be able to inspect your setup and the live behavior
   to determine the exact cause of the conflict.
 * Thank you for your cooperation!
 * Best regards,
   Brianvu-tp

Viewing 1 replies (of 1 total)

The topic ‘javascript error’ is closed to new replies.

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## Tags

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

 * 1 reply
 * 2 participants
 * Last reply from: [brianvu-tp](https://wordpress.org/support/users/briantp/)
 * Last activity: [8 months, 2 weeks ago](https://wordpress.org/support/topic/javascript-error-243/#post-18573311)
 * Status: not resolved