Title: error mess.
Last modified: November 21, 2017

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# error mess.

 *  Resolved [kelderkold](https://wordpress.org/support/users/kelderkold/)
 * (@kelderkold)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/error-mess/)
 * I get this message, what is wrong, can you update the plugin?
 * Notice: Use of undefined constant wwp_plugin_directory_name – assumed ‘wwp_plugin_directory_name’
   in /customers/f/b/7/xxx.dk/httpd.www/butik/wp-content/plugins/woo-wholesale-pricing/
   inc/class-woo-wholesale-functions.php on line 13 Warning: Cannot modify header
   information – headers already sent by (output started at /customers/f/b/7/xxx.
   dk/httpd.www/butik/wp-content/plugins/woo-wholesale-pricing/inc/class-woo-wholesale-
   functions.php:13) in /customers/f/b/7/xxx.dk/httpd.www/butik/wp-admin/includes/
   misc.php on line 1114

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## Tags

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

 * 0 replies
 * 1 participant
 * Last reply from: [kelderkold](https://wordpress.org/support/users/kelderkold/)
 * Last activity: [8 years, 6 months ago](https://wordpress.org/support/topic/error-mess/)
 * Status: resolved