Title: Error loading media “MutationObserver” Polylang Pro
Last modified: October 1, 2024

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# Error loading media “MutationObserver” Polylang Pro

 *  Resolved [alexrepec](https://wordpress.org/support/users/alexrepec/)
 * (@alexrepec)
 * [1 year, 8 months ago](https://wordpress.org/support/topic/error-loading-media-mutationobserver-polylang-pro/)
 * Everything worked and then at one point it stopped, it gives an error “Uncaught
   TypeError: Failed to execute ‘observe’ on ‘MutationObserver’: parameter 1 is 
   not of type ‘Node'” in the media, the pictures do not load (are not displayed).
   And if you select the list display, then it opens.
 * ![](https://wordpress.org/ba24eade-12c0-4225-a732-e6c00928d776)
 * jQuery.Deferred exception: Failed to execute ‘observe’ on ‘MutationObserver’:
   parameter 1 is not of type ‘Node’. TypeError: Failed to execute ‘observe’ on ‘
   MutationObserver’: parameter 1 is not of type ‘Node’.
   at HTMLDocument. ([https://wp.ocean-agency.com.ua/wp-content/plugins/polylang-pro/js/build/post.min.js?ver=3.6.4:1:1192](https://wp.ocean-agency.com.ua/wp-content/plugins/polylang-pro/js/build/post.min.js?ver=3.6.4:1:1192))
   at e ([https://wp.ocean-agency.com.ua/wp-admin/load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:27028](https://wp.ocean-agency.com.ua/wp-admin/load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:27028))
   at t ([https://wp.ocean-agency.com.ua/wp-admin/load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:27330](https://wp.ocean-agency.com.ua/wp-admin/load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:27330))
   undefined
 * ncaught TypeError: Failed to execute ‘observe’ on ‘MutationObserver’: parameter
   1 is not of type ‘Node’.
   at HTMLDocument. (post.min.js?ver=3.6.4:1:1192)at e (
   load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&
   ver=6.6.2:2:27028)at t (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-
   migrate,utils,wp-hooks&ver=6.6.2:2:27330)

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Sebastien SERRE](https://wordpress.org/support/users/sebastienserre/)
 * (@sebastienserre)
 * [1 year, 8 months ago](https://wordpress.org/support/topic/error-loading-media-mutationobserver-polylang-pro/#post-18052515)
 * Hello,
 * This community forum doesn’t allow giving support on premium plugins.
   Please 
   contact us our support team at [https://polylang.pro/support](https://polylang.pro/support)

Viewing 1 replies (of 1 total)

The topic ‘Error loading media “MutationObserver” Polylang Pro’ is closed to new
replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [Sebastien SERRE](https://wordpress.org/support/users/sebastienserre/)
 * Last activity: [1 year, 8 months ago](https://wordpress.org/support/topic/error-loading-media-mutationobserver-polylang-pro/#post-18052515)
 * Status: resolved