Title: Stream causes E_WARNING errors during Updraft backup
Last modified: August 30, 2016

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# Stream causes E_WARNING errors during Updraft backup

 *  Resolved [Viktor Nagornyy](https://wordpress.org/support/users/viktorix/)
 * (@viktorix)
 * [10 years, 6 months ago](https://wordpress.org/support/topic/stream-causes-e_warning-errors-during-updraft-backup/)
 * Hey guys,
 * We encountered an error caused by Stream while Updraft plugin is performing backup.
   You can see I also [created a support thread](https://wordpress.org/support/topic/e_warning-errors-with-stream-plugin-in-the-log?replies=2)
   for their plugin.
 * Can you shed some light on what can cause this error? See log below which comes
   from Updraft:
 *     ```
       2092.365 (5) Resume backup (0a9f6db54c9b, 5): finish run
       2092.393 (5) There were errors in the uploads, so the 'resume' event is remaining scheduled
       2092.422 (5) PHP event: code E_WARNING: array_udiff_assoc() expects parameter 3 to be a valid callback, no array or string given (line 172, wp-content/plugins/stream/classes/class-connector.php)
       2092.432 (5) PHP event: code E_WARNING: array_keys() expects parameter 1 to be array, null given (line 174, wp-content/plugins/stream/classes/class-connector.php)
       2092.442 (5) PHP event: code E_WARNING: array_merge(): Argument #1 is not an array (line 181, wp-content/plugins/stream/classes/class-connector.php)
       2092.453 (5) PHP event: code E_WARNING: array_filter() expects parameter 1 to be array, null given (line 192, wp-content/plugins/stream/classes/class-connector.php)
       2092.463 (5) PHP event: code E_WARNING: array_unique() expects parameter 1 to be array, null given (line 194, wp-content/plugins/stream/classes/class-connector.php)
       2092.474 (5) PHP event: code E_WARNING: array_values() expects parameter 1 to be array, null given (line 194, wp-content/plugins/stream/classes/class-connector.php)
       2092.483 (5) PHP event: code E_WARNING: Invalid argument supplied for foreach() (line 638, wp-content/plugins/stream/connectors/class-connector-settings.php)
       2092.499 (5) No email will/can be sent - the user has not configured an email address.
       2092.508 (5) The backup has not finished; a resumption is scheduled
       ```
   
 * WP and all plugins are up-to-date. Thanks.
 * [https://wordpress.org/plugins/stream/](https://wordpress.org/plugins/stream/)

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

 *  Thread Starter [Viktor Nagornyy](https://wordpress.org/support/users/viktorix/)
 * (@viktorix)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/stream-causes-e_warning-errors-during-updraft-backup/#post-6747767)
 * Any info?
 *  [Luke Carbis](https://wordpress.org/support/users/lukecarbis/)
 * (@lukecarbis)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/stream-causes-e_warning-errors-during-updraft-backup/#post-6747770)
 * Hi Viktor,
 * Looks like you might be running a version of PHP which doesn’t support anonymous
   functions. Can you confirm which PHP version you’re running?
 * Luke

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

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## Tags

 * [errors](https://wordpress.org/support/topic-tag/errors/)

 * 2 replies
 * 2 participants
 * Last reply from: [Luke Carbis](https://wordpress.org/support/users/lukecarbis/)
 * Last activity: [10 years, 2 months ago](https://wordpress.org/support/topic/stream-causes-e_warning-errors-during-updraft-backup/#post-6747770)
 * Status: resolved