Title: Errors after migrating website Last modified: August 31, 2016 --- # Errors after migrating website * [masterofstuff](https://wordpress.org/support/users/masterofstuff/) * (@masterofstuff) * [10 years ago](https://wordpress.org/support/topic/errors-after-migrating-website/) * Hello I build website for my client on one of my testing domains and plugin was working fine, but after migrating this website on his domain your caused errors. * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-login.php on line 425 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-login.php on line 438 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 947 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 948 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 949 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 950 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 951 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 952 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 955 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 956 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 957 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 958 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 961 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 962 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 963 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 964 * Warning: Cannot modify header information – headers already sent by (output started at /home/irishspo/public_html/wp-content/plugins/email-users/email-users.php: 4259) in /home/irishspo/public_html/wp-includes/pluggable.php on line 1196 * I have got these errors when plugin is active and i am logged out or try to log out. After i am log out i cant log in. Do you have some ideas how to fix this? Thanks Artur * [https://wordpress.org/plugins/email-users/](https://wordpress.org/plugins/email-users/) Viewing 1 replies (of 1 total) * Plugin Author [Mike Walsh](https://wordpress.org/support/users/mpwalsh8/) * (@mpwalsh8) * [10 years ago](https://wordpress.org/support/topic/errors-after-migrating-website/#post-7409936) * Something is odd. * > Warning: Cannot modify header information – headers already sent by (output > started at /home/irishspo/public_html/wp-content/plugins/email-users/email- > users.php:4259) in /home/irishspo/public_html/wp-login.php on line 425 * If you [examine the the source for email-users.php](https://plugins.svn.wordpress.org/email-users/trunk/email-users.php) it doesn’t even have 4295 lines in it so the error above (and repeated a number of times) is suspicious. * Standard debugging questions: 1. What is different between your development site and the production site? 2. Have you disabled all plugins except Email Users to see if the problem persists? * This has the appearance of a plugin or theme conflict so narrowing down what the conflict is the first step to resolving the problem. Viewing 1 replies (of 1 total) The topic ‘Errors after migrating website’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/email-users_a0e0cf.svg) * [Email Users](https://wordpress.org/plugins/email-users/) * [Frequently Asked Questions](https://wordpress.org/plugins/email-users/#faq) * [Support Threads](https://wordpress.org/support/plugin/email-users/) * [Active Topics](https://wordpress.org/support/plugin/email-users/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/email-users/unresolved/) * [Reviews](https://wordpress.org/support/plugin/email-users/reviews/) * 1 reply * 2 participants * Last reply from: [Mike Walsh](https://wordpress.org/support/users/mpwalsh8/) * Last activity: [10 years ago](https://wordpress.org/support/topic/errors-after-migrating-website/#post-7409936) * Status: not resolved