Title: PHP Warnings
Last modified: August 30, 2016

---

# PHP Warnings

 *  Resolved [mewcrazy](https://wordpress.org/support/users/mewcrazy/)
 * (@mewcrazy)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-warnings-35/)
 * Hello,
 * Your plugin throws me a PHP warning since I recently updated wordpress. Any Idea
   how to fix it? Or even better would be if you can fix your plugin.
 * Warning: array_merge(): Argument #2 is not an array in /home/pokerallstars/public_html/
   wp-content/plugins/wp-useronline/scb/Options.php on line 62
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/pokerallstars/public_html/wp-content/plugins/wp-useronline/scb/Options.
   php:62) in /home/pokerallstars/public_html/wp-includes/pluggable.php on line 
   1196
 * Kind Regards,
    Dennis
 * [https://wordpress.org/plugins/wp-useronline/](https://wordpress.org/plugins/wp-useronline/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [mewcrazy](https://wordpress.org/support/users/mewcrazy/)
 * (@mewcrazy)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-warnings-35/#post-6610192)
 * They appear on every page, even in the dashboard. It makes it impossible for 
   me to log in.
 * See them live @ [http://www.poker-all-stars.de](http://www.poker-all-stars.de)
 *  Plugin Author [Lester Chan](https://wordpress.org/support/users/gamerz/)
 * (@gamerz)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-warnings-35/#post-6610249)
 * Hmm that error means the plugin is unable to create the options. Try deactivating
   and activating the plugin again.
 *  Thread Starter [mewcrazy](https://wordpress.org/support/users/mewcrazy/)
 * (@mewcrazy)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-warnings-35/#post-6610281)
 * Yep it was that simple:
 * 1) Renamed the /wp-useronline directory to /wp-useronline2 to deactivate it
    
   2) Updated all plugins and finally WordPress to 4.3.1 3) Renamed the plugin back
   to /wp-useronline
 * And all errors/warnings were gone.
 * Thanks 🙂 Topic resolved.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘PHP Warnings’ is closed to new replies.

 * ![](https://ps.w.org/wp-useronline/assets/icon.svg?rev=978026)
 * [WP-UserOnline](https://wordpress.org/plugins/wp-useronline/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-useronline/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-useronline/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-useronline/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-useronline/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-useronline/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [mewcrazy](https://wordpress.org/support/users/mewcrazy/)
 * Last activity: [10 years, 7 months ago](https://wordpress.org/support/topic/php-warnings-35/#post-6610281)
 * Status: resolved