Title: Fatal Error with workflow Plugin
Last modified: May 11, 2017

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# Fatal Error with workflow Plugin

 *  [burquidi](https://wordpress.org/support/users/burquidi/)
 * (@burquidi)
 * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-with-workflow-plugin/)
 * We’re using a plugin on the site called Oasis Workflow Pro and when we click 
   on the Make a Revision button within a post or page, a 500 internal server error
   appeared in the console window. I took a look at the server error logs and saw
   that Stream is triggering a fatal error. I’ve included the error log text below.
   The 500 error no longer appeared in the console window and the Make a Revision
   button functioned as expected once I disabled Stream.
 * Thank you!
 * PHP Fatal error: Uncaught exception ‘Exception’ with message ‘Invalid use, type
   must be one of INPUT_* family.’ in /nas/content/staging/sitename/wp-content/plugins/
   stream/classes/class-filter-input.php:51\nStack trace:\n#0 [internal function]:
   WP_Stream\\Filter_Input::super(0, ‘post_type’)\n#1 /nas/content/staging/sitename/
   wp-content/plugins/stream/includes/functions.php(16): call_user_func_array(Array,
   Array)\n#2 /nas/content/staging/sitename/wp-content/plugins/stream/classes/class-
   alerts-list.php(342): wp_stream_filter_input(0, ‘post_type’)\n#3 [internal function]:
   WP_Stream\\Alerts_List->save_alert_inline_edit(Array, Array)\n#4 /nas/content/
   staging/sitename/wp-includes/class-wp-hook.php(298): call_user_func_array(Array,
   Array)\n#5 /nas/content/staging/sitename/wp-includes/plugin.php(203): WP_Hook-
   >apply_filters(Array, Array)\n#6 /nas/content/staging/sitename/wp-includes/post.
   php(3281): apply_filters(‘wp_insert_post_…’, Array, Array)\n#7 /nas/content/staging/
   sitename/wp-content/plugins/oasis-workflow-pro/ in /nas/content/staging/sitename/
   wp-content/plugins/stream/classes/class-filter-input.php on line 51, referer:
   [http://sitename.staging.wpengine.com/wp-admin/post.php?post=1357&action=edit&lang=en](http://sitename.staging.wpengine.com/wp-admin/post.php?post=1357&action=edit&lang=en)

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## Tags

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

 * 0 replies
 * 1 participant
 * Last reply from: [burquidi](https://wordpress.org/support/users/burquidi/)
 * Last activity: [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-with-workflow-plugin/)
 * Status: not resolved