Title: JavaScript error in backend
Last modified: May 16, 2018

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# JavaScript error in backend

 *  [Adrian Mörchen](https://wordpress.org/support/users/adrian2k7/)
 * (@adrian2k7)
 * [8 years ago](https://wordpress.org/support/topic/javascript-error-in-backend-2/)
 * Hello,
 * When using Advanced Dates, we have a JavaScript error in the WP administration:
 *     ```
       functions.js?ver=4.9.5:65 Uncaught TypeError: Cannot read property 'checked' of null
           at window.onload (functions.js?ver=4.9.5:65)
           at newonload_1 (column.js?ver=1526478354:7)
           at newonload (toolbar.js?ver=1526478354:7)
       ```
   
 * This is happening in the plugins functions.js at line 65.
 * Thanks,
 * Adrian

The topic ‘JavaScript error in backend’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [Adrian Mörchen](https://wordpress.org/support/users/adrian2k7/)
 * Last activity: [8 years ago](https://wordpress.org/support/topic/javascript-error-in-backend-2/)
 * Status: not resolved