Title: NextGen Error after last update
Last modified: August 13, 2020

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# NextGen Error after last update

 *  Resolved [viking59](https://wordpress.org/support/users/viking59/)
 * (@viking59)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/nextgen-error-after-last-update/)
 * After last Nextgen update, this is what I get when clicking on a gallery:
 * TypeError thrown
    Argument 1 passed to iterator_to_array() must implement interface
   Traversable, null given
 * This happens when clicking on any gallery in the “manage gallery” screen. Not
   sure if it started after the WordPress update, or the NextGen update, both yesterday.
 * Anyone else seen this??
    -  This topic was modified 5 years, 9 months ago by [viking59](https://wordpress.org/support/users/viking59/).
    -  This topic was modified 5 years, 9 months ago by [viking59](https://wordpress.org/support/users/viking59/).

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [viking59](https://wordpress.org/support/users/viking59/)
 * (@viking59)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/nextgen-error-after-last-update/#post-13252199)
 * SO after installing the Enable jQuery Migrate Helper, the helper is informing
   me that:
 * blog/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/ajax/
   static/ajax.min.js: jQuery.fn.unload() is deprecated
 * Have no idea what this means.
 *  [Mihai Ceban](https://wordpress.org/support/users/mihaiimagely/)
 * (@mihaiimagely)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/nextgen-error-after-last-update/#post-13255712)
 * We do apologize for the created inconveniences. There are definitely a couple
   of important issues since the latest NGG and WP 5.5 updates. The first thing 
   that I would try is to switch to a different lightbox effect since Facybox is
   problematic. You can change it to lets say SimpleLightbox ( that got fixed in
   the last update ) from “NextGen Gallery -> Other Options -> Lightbox Effects”

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘NextGen Error after last update’ is closed to new replies.

 * ![](https://ps.w.org/nextgen-gallery/assets/icon-256x256.png?rev=2083961)
 * [Photo Gallery, Sliders, Proofing and Themes - NextGEN Gallery](https://wordpress.org/plugins/nextgen-gallery/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/nextgen-gallery/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/nextgen-gallery/)
 * [Active Topics](https://wordpress.org/support/plugin/nextgen-gallery/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/nextgen-gallery/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/nextgen-gallery/reviews/)

 * 2 replies
 * 3 participants
 * Last reply from: [Mihai Ceban](https://wordpress.org/support/users/mihaiimagely/)
 * Last activity: [5 years, 9 months ago](https://wordpress.org/support/topic/nextgen-error-after-last-update/#post-13255712)
 * Status: resolved