Title: error array_key_exists
Last modified: October 31, 2018

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# error array_key_exists

 *  Resolved [rico76](https://wordpress.org/support/users/rico76/)
 * (@rico76)
 * [7 years, 7 months ago](https://wordpress.org/support/topic/error-array_key_exists/)
 * Hello,
 * I have this error :
 * PHP Warning: array_key_exists() expects parameter 2 to be array, null given in/
   home/t6aes3rvz33e/public_html/wp-content/plugins/related-post/includes/functions.
   php on line 74
 * Do you know how to fix it ?
 * Thanks a lot

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [PickPlugins](https://wordpress.org/support/users/pickplugins/)
 * (@pickplugins)
 * [7 years, 7 months ago](https://wordpress.org/support/topic/error-array_key_exists/#post-10834604)
 * Thanks for report the issue,
 * I will check the plugin and if possible will update as soon as possible.
    Regards
 *  Plugin Author [PickPlugins](https://wordpress.org/support/users/pickplugins/)
 * (@pickplugins)
 * [7 years, 7 months ago](https://wordpress.org/support/topic/error-array_key_exists/#post-10834673)
 * can you please check the option “Display automatically only these post types”
   you have checked at least one post types.
 * please see the screenshot
 * > [View post on imgur.com](https://imgur.com/a/vkPMvSX)
 * let me know the update
 *  Thread Starter [rico76](https://wordpress.org/support/users/rico76/)
 * (@rico76)
 * [7 years, 7 months ago](https://wordpress.org/support/topic/error-array_key_exists/#post-10834741)
 * Hello,
 * Thanks for your quick reply.
 * I had already only “post” checked.
 * Thanks
 * Eric
 *  Plugin Author [PickPlugins](https://wordpress.org/support/users/pickplugins/)
 * (@pickplugins)
 * [7 years, 6 months ago](https://wordpress.org/support/topic/error-array_key_exists/#post-10836832)
 * Have you updated/saved settings?
 * if not can you please save/update setting page. let me know the result.
    Regards
 *  Thread Starter [rico76](https://wordpress.org/support/users/rico76/)
 * (@rico76)
 * [7 years, 6 months ago](https://wordpress.org/support/topic/error-array_key_exists/#post-10836877)
 * Hello,
 * Yes it’s the first thing i did when i have installed this plugin.
 * I only use this plugin with post.
 * Thanks
 * Eric

Viewing 5 replies - 1 through 5 (of 5 total)

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 * 5 replies
 * 2 participants
 * Last reply from: [rico76](https://wordpress.org/support/users/rico76/)
 * Last activity: [7 years, 6 months ago](https://wordpress.org/support/topic/error-array_key_exists/#post-10836877)
 * Status: resolved