Title: Notifications Error
Last modified: June 21, 2018

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# Notifications Error

 *  Resolved [MFSAM](https://wordpress.org/support/users/mfsam/)
 * (@mfsam)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/notifications-error-4/)
 * Hi,
 * I’m receiving this error every time a notification is attempting to send. Can
   anyone think of a reason why this error would be happening?
 * PHP Warning: preg_match() expects parameter 2 to be string, array given in /wp-
   content/plugins/publishpress/libraries/Notifications/Workflow/Workflow.php on
   line 158
 * Thank you for your help.

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

 *  Plugin Author [PublishPress](https://wordpress.org/support/users/publishpress/)
 * (@publishpress)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/notifications-error-4/#post-10423252)
 * Hi [@mfsam](https://wordpress.org/support/users/mfsam/)
 * The most likely explanation is you’re using an old PHP version.
 * Can you contact [help@publishpress.com](https://wordpress.org/support/topic/notifications-error-4/help@publishpress.com?output_format=md)
   with details of your server setup, please.
 *  Thread Starter [MFSAM](https://wordpress.org/support/users/mfsam/)
 * (@mfsam)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/notifications-error-4/#post-10423328)
 * Hi,
 * Thank you for getting back to me!
 * It was PHP 5.6. I’ve upgraded it to 7.1. I’ll keep an eye on it for a couple 
   of days and contact your email address if it persists.
 *  Plugin Author [PublishPress](https://wordpress.org/support/users/publishpress/)
 * (@publishpress)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/notifications-error-4/#post-10423385)
 * Sure thing. Thanks for using PublishPress.

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

The topic ‘Notifications Error’ is closed to new replies.

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 * 3 replies
 * 2 participants
 * Last reply from: [PublishPress](https://wordpress.org/support/users/publishpress/)
 * Last activity: [7 years, 9 months ago](https://wordpress.org/support/topic/notifications-error-4/#post-10423385)
 * Status: resolved