Title: Activation Error
Last modified: May 22, 2019

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# Activation Error

 *  Resolved [zverissimo](https://wordpress.org/support/users/zverissimo/)
 * (@zverissimo)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/activation-error-100/)
 * Hello!
 * I’m trying to add a newsletter to this website, and I already used THE Newsletter
   plugin before to do so in other websites and blogs, with a satisfying result…
   
   My problem is: This time, on this site, I was able to INSTALL the plugin with
   success (at least I think so, wordpress say so), but, when I try to ACTIVATE 
   the plugin, I got this FATAL ERROR:
 * Warning: require_once(__DIR__/includes/logger.php) [function.require-once]: failed
   to open stream: No such file or directory in /home/storage/1/14/e4/sindilojascanoas1/
   public_html/wp-content/plugins/newsletter/plugin.php on line 78
 * Fatal error: require_once() [function.require]: Failed opening required ‘__DIR__/
   includes/logger.php’ (include_path=’.:/usr/share/pear’) in /home/storage/1/14/
   e4/sindilojascanoas1/public_html/wp-content/plugins/newsletter/plugin.php on 
   line 78
 * Any ideas of how can I activate the plugin, please?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Factivation-error-100%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  Plugin Author [Stefano Lissa](https://wordpress.org/support/users/satollo/)
 * (@satollo)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/activation-error-100/#post-11562200)
 * Hi, rather strange a file missing error. Try to remove and then reinstall the
   plugin.
 *  Thread Starter [zverissimo](https://wordpress.org/support/users/zverissimo/)
 * (@zverissimo)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/activation-error-100/#post-11562238)
 * No… Same result.
 *  Plugin Author [Stefano Lissa](https://wordpress.org/support/users/satollo/)
 * (@satollo)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/activation-error-100/#post-11563093)
 * Hi, was that a first install or an update? Looking better at the error, it seems
   you’re running a very old PHP version in your blog. Be sure to use PHP 5.6 or
   greater.
 * Stefano.

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

The topic ‘Activation Error’ is closed to new replies.

 * ![](https://ps.w.org/newsletter/assets/icon-256x256.png?rev=1052028)
 * [Newsletter - Send awesome emails from WordPress](https://wordpress.org/plugins/newsletter/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/newsletter/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/newsletter/)
 * [Active Topics](https://wordpress.org/support/plugin/newsletter/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/newsletter/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/newsletter/reviews/)

## Tags

 * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/)

 * 3 replies
 * 2 participants
 * Last reply from: [Stefano Lissa](https://wordpress.org/support/users/satollo/)
 * Last activity: [6 years, 10 months ago](https://wordpress.org/support/topic/activation-error-100/#post-11563093)
 * Status: resolved