Title: error
Last modified: June 18, 2017

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# error

 *  [jonneh91](https://wordpress.org/support/users/jonneh91/)
 * (@jonneh91)
 * [8 years, 11 months ago](https://wordpress.org/support/topic/error-938/)
 * Currently receiving this error “Warning: array_merge(): Argument #2 is not an
   array in wp-content/plugins/user-session-synchronizer/includes/class-user-session-
   synchronizer-session-control.php on line 304”
 * Any idea the cause?

The topic ‘error’ is closed to new replies.

 * ![](https://ps.w.org/user-session-synchronizer/assets/icon-128x128.jpg?rev=1872027)
 * [User Session Synchronizer](https://wordpress.org/plugins/user-session-synchronizer/)
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 * 0 replies
 * 1 participant
 * Last reply from: [jonneh91](https://wordpress.org/support/users/jonneh91/)
 * Last activity: [8 years, 11 months ago](https://wordpress.org/support/topic/error-938/)
 * Status: not resolved