Title: I am getting 2 warning errors
Last modified: March 4, 2020

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# I am getting 2 warning errors

 *  [vermit](https://wordpress.org/support/users/vermit/)
 * (@vermit)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/i-am-getting-2-warning-errors/)
 * I am getting the below 2 warning errors when I log in:
    Warning: call_user_func()
   expects parameter 1 to be a valid callback, no array or string given in /home/
   ltsporta/public_html/wp-includes/functions.php on line 3291
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/ltsporta/public_html/wp-includes/functions.php:3291) in /home/ltsporta/
   public_html/wp-content/plugins/simple-membership/classes/class.swpm-auth.php 
   on line 263

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

 *  Plugin Support [mbrsolution](https://wordpress.org/support/users/mbrsolution/)
 * (@mbrsolution)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/i-am-getting-2-warning-errors/#post-12506006)
 * Hi, what happens if you disable our plugin? Do you still receive those warning
   messages?
 * Regards
 *  Thread Starter [vermit](https://wordpress.org/support/users/vermit/)
 * (@vermit)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/i-am-getting-2-warning-errors/#post-12508414)
 * The errors are only visible when I log in as a member, so if I deactivate the
   plugin i cannot login.
    Also, this only seems to show up If I am also logged 
   into wp-admin
 *  Plugin Support [mbrsolution](https://wordpress.org/support/users/mbrsolution/)
 * (@mbrsolution)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/i-am-getting-2-warning-errors/#post-12509438)
 * Thank you for reporting back. Can you carry out the following troubleshooting
   test [test-for-plugin-and-theme-conflict-before-posting-an-issue-or-a-bug](https://simple-membership-plugin.com/forums/topic/test-for-plugin-and-theme-conflict-before-posting-an-issue-or-a-bug/)?
 * This will determine if it is a plugin or theme conflict.
 * Thank you
    -  This reply was modified 6 years, 3 months ago by [mbrsolution](https://wordpress.org/support/users/mbrsolution/).

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

The topic ‘I am getting 2 warning errors’ is closed to new replies.

 * ![](https://ps.w.org/simple-membership/assets/icon-128x128.png?rev=974529)
 * [Simple Membership](https://wordpress.org/plugins/simple-membership/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/simple-membership/#faq)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/simple-membership/unresolved/)
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 * 3 replies
 * 2 participants
 * Last reply from: [mbrsolution](https://wordpress.org/support/users/mbrsolution/)
 * Last activity: [6 years, 3 months ago](https://wordpress.org/support/topic/i-am-getting-2-warning-errors/#post-12509438)
 * Status: not resolved