Title: Error On Login
Last modified: December 13, 2018

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# Error On Login

 *  Resolved [Jacob Hill](https://wordpress.org/support/users/tekfused/)
 * (@tekfused)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/error-on-login-8/)
 * Hello,
 * When I try to login into wp-admin, I get the following error:
 * Notice: Undefined index: testmode in /home/%%%%%%%%%%/%%%%%%%%/wp-content/plugins/
   wp-html-mail/includes/class-haet-mail.php on line 411
 * Then I’m redirected to the wp-login.php page, with this error:
 * “ERROR: Cookies are blocked due to unexpected output. For help, please see this
   documentation or try the support forums.”
 * I’m using WordPress 5.0.1.
 * Thank you!
 * Jake
    -  This topic was modified 7 years, 5 months ago by [Jacob Hill](https://wordpress.org/support/users/tekfused/).

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

 *  [Anticosti](https://wordpress.org/support/users/anticosti/)
 * (@anticosti)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/error-on-login-8/#post-10986768)
 * Hmmm… I can’t reproduce on my site. Maybe just hand move this plugin into a backup
   folder until a solution is found. Must be a plugin conflict…?
 *  Plugin Author [Hannes Etzelstorfer](https://wordpress.org/support/users/haet/)
 * (@haet)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/error-on-login-8/#post-10987372)
 * I just released a small fix for this notice. Could you please update to 2.8.4.2.
 *  Thread Starter [Jacob Hill](https://wordpress.org/support/users/tekfused/)
 * (@tekfused)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/error-on-login-8/#post-10989446)
 * That resolved the issue, thank you so much!

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

The topic ‘Error On Login’ is closed to new replies.

 * ![](https://ps.w.org/wp-html-mail/assets/icon-256x256.png?rev=1730334)
 * [Email Template Designer - WP HTML Mail](https://wordpress.org/plugins/wp-html-mail/)
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 * 3 replies
 * 3 participants
 * Last reply from: [Jacob Hill](https://wordpress.org/support/users/tekfused/)
 * Last activity: [7 years, 5 months ago](https://wordpress.org/support/topic/error-on-login-8/#post-10989446)
 * Status: resolved