Title: Error after activate
Last modified: October 26, 2017

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# Error after activate

 *  [manx89](https://wordpress.org/support/users/manx89/)
 * (@manx89)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/error-avter-activate/)
 * Hi,
    after I instal and activate Mailpoet I have error like this: “The plugin
   generated 1961 characters of unexpected output during activation. If you notice“
   headers already sent” messages, problems with syndication feeds or other issues,
   try deactivating or removing this plugin.” and long list od Warrings like this:“
   Warning: Wrong parameter count for class_alias() in /home/manx/domains/ninja-
   race.pl/public_html/wp-content/plugins/mailpoet/vendor/twig/twig/lib/Twig/Environment.
   php on line 1600”
 * Version of plugin is 3.0.8. Fresh instal of newest WordPress.
    And after I activate
   plugin, in the site there is no longer polish letters.
    -  This topic was modified 8 years, 9 months ago by [manx89](https://wordpress.org/support/users/manx89/).
    -  This topic was modified 8 years, 9 months ago by [manx89](https://wordpress.org/support/users/manx89/).
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-avter-activate%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

The topic ‘Error after activate’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [manx89](https://wordpress.org/support/users/manx89/)
 * Last activity: [8 years, 9 months ago](https://wordpress.org/support/topic/error-avter-activate/)
 * Status: not resolved