Title: Error Messages
Last modified: August 20, 2016

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# Error Messages

 *  [gallbladder](https://wordpress.org/support/users/gallbladder/)
 * (@gallbladder)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/error-messages-15/)
 * Things look good until I change themes. Got the following error messages:
 * Warning: Invalid argument supplied for foreach() in /home/vulcan95/public_html/
   wp-content/plugins/custom-post-order/custom-post-order.php on line 93
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/vulcan95/public_html/wp-content/plugins/custom-post-order/custom-post-
   order.php:93) in /home/vulcan95/public_html/wp-includes/option.php on line 564.
 * Where do I start to correct this problem?

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

 *  [Rachel Baker](https://wordpress.org/support/users/rachelbaker/)
 * (@rachelbaker)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/error-messages-15/#post-2910038)
 * The problem is likely caused due to your previous theme having a custom post 
   type set and using the custom post type order plugin, and your new theme doesn’t
   have a custom post type. You can disable the plugin….
 *  Thread Starter [gallbladder](https://wordpress.org/support/users/gallbladder/)
 * (@gallbladder)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/error-messages-15/#post-2910042)
 * Ms. Baker, you are wonderful! Thanks! This is my first attempt using WordPress.
 *  [Rachel Baker](https://wordpress.org/support/users/rachelbaker/)
 * (@rachelbaker)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/error-messages-15/#post-2910044)
 * Happy to help!

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

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

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [Rachel Baker](https://wordpress.org/support/users/rachelbaker/)
 * Last activity: [13 years, 10 months ago](https://wordpress.org/support/topic/error-messages-15/#post-2910044)
 * Status: not resolved

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