Title: Uncaught TypeError
Last modified: December 11, 2019

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# Uncaught TypeError

 *  [bgoosen](https://wordpress.org/support/users/bgoosen/)
 * (@bgoosen)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-typeerror-39/)
 * I’m having trouble with CSS animations breaking on a page that is using AWB. 
   It is sporadic though. Sometimes it works, and other times it doesn’t. When it
   doesn’t I can inspect the page and see this error:
 *     ```
       jarallax.js:529 Uncaught TypeError: Cannot read property 'style' of undefined
           at jarallax.js:529
           at Array.forEach (<anonymous>)
           at j.value (jarallax.js:528)
           at j.value (jarallax.js:996)
           at j.t.onScroll (jarallax-video.min.js?ver=1.11.0:6)
           at HTMLDivElement.<anonymous> (awb.min.js?ver=1.6.0:5)
           at Function.each (jquery.js:2)
           at a.fn.init.each (jquery.js:2)
           at awb.min.js?ver=1.6.0:5
           at Array.forEach (<anonymous>)
       ```
   
 * Any idea what this means or how to fix?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Funcaught-typeerror-39%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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## Tags

 * [uncaught TypeError](https://wordpress.org/support/topic-tag/uncaught-typeerror/)

 * 0 replies
 * 1 participant
 * Last reply from: [bgoosen](https://wordpress.org/support/users/bgoosen/)
 * Last activity: [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-typeerror-39/)
 * Status: not resolved