Title: Errors On Logout Last modified: October 25, 2019 --- # Errors On Logout * Resolved [Ray Burtoff](https://wordpress.org/support/users/rburtoff/) * (@rburtoff) * [6 years, 7 months ago](https://wordpress.org/support/topic/errors-on-logout/) * I have started receiving the following errors when the Force Refresh plugin is activated: * Warning: Constants may only evaluate to scalar values in /home2/cfhonet/public_html/ cfho_prod/wp-content/plugins/force-refresh/filter-force-refresh.php on line 30 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-login.php on line 453 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-login.php on line 468 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-login.php on line 470 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 957 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 958 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 959 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 960 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 961 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 962 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 965 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 966 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 969 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 970 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 971 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 972 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 975 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 976 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 977 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 978 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 981 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 1251 * Warning: Cannot modify header information – headers already sent by (output started at /home2/cfhonet/public_html/cfho_prod/wp-content/plugins/force-refresh/filter- force-refresh.php:30) in /home2/cfhonet/public_html/cfho_prod/wp-includes/pluggable. php on line 1254 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferrors-on-logout%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 2 replies - 1 through 2 (of 2 total) * Plugin Author [jordanleven](https://wordpress.org/support/users/jordanleven/) * (@jordanleven) * [6 years, 7 months ago](https://wordpress.org/support/topic/errors-on-logout/#post-12065644) * Thanks for reaching out. What version of PHP are you on? * Plugin Author [jordanleven](https://wordpress.org/support/users/jordanleven/) * (@jordanleven) * [6 years, 6 months ago](https://wordpress.org/support/topic/errors-on-logout/#post-12102301) * I haven’t heard back, so I’m closing out this support request. If you’re continuing to have issues, please reply to this thread. Viewing 2 replies - 1 through 2 (of 2 total) The topic ‘Errors On Logout’ is closed to new replies. * ![](https://ps.w.org/force-refresh/assets/icon-256x256.png?rev=2428247) * [Force Refresh](https://wordpress.org/plugins/force-refresh/) * [Support Threads](https://wordpress.org/support/plugin/force-refresh/) * [Active Topics](https://wordpress.org/support/plugin/force-refresh/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/force-refresh/unresolved/) * [Reviews](https://wordpress.org/support/plugin/force-refresh/reviews/) ## Tags * [Logout](https://wordpress.org/support/topic-tag/logout/) * [logout error](https://wordpress.org/support/topic-tag/logout-error/) * [warning](https://wordpress.org/support/topic-tag/warning/) * 2 replies * 2 participants * Last reply from: [jordanleven](https://wordpress.org/support/users/jordanleven/) * Last activity: [6 years, 6 months ago](https://wordpress.org/support/topic/errors-on-logout/#post-12102301) * Status: resolved