Title: crashed my WP MultiSite
Last modified: September 2, 2016

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# crashed my WP MultiSite

 *  [peckjon](https://wordpress.org/support/users/peckjon/)
 * (@peckjon)
 * [12 years, 1 month ago](https://wordpress.org/support/topic/crashed-my-wp-multisite/)
 * Crashed (whitescreened) my WordPress multisite server immediately upon activation(
   both in network and single-site activiation modes).
 * If this happens, delete /wp-content/plugins/simple-subscribe/ to restore your
   server.

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

 *  Plugin Author [tanaylakhani](https://wordpress.org/support/users/tanaylakhani/)
 * (@tanaylakhani)
 * [12 years, 1 month ago](https://wordpress.org/support/topic/crashed-my-wp-multisite/#post-7865221)
 * Hi can you elaborate the issue? Did you tried turning on WP Debug to see the 
   errors?
 *  Thread Starter [peckjon](https://wordpress.org/support/users/peckjon/)
 * (@peckjon)
 * [12 years, 1 month ago](https://wordpress.org/support/topic/crashed-my-wp-multisite/#post-7865222)
 * Thanks for following up, tanaylakhani.
 * Fatal error: Call to undefined function Nette\Utils\mb_strtoupper() in /var/www/
   html/wp-content/plugins/simple-subscribe/libs/Nette/Nette.min.php on line 7191
 *  Plugin Author [tanaylakhani](https://wordpress.org/support/users/tanaylakhani/)
 * (@tanaylakhani)
 * [12 years, 1 month ago](https://wordpress.org/support/topic/crashed-my-wp-multisite/#post-7865248)
 * Please try the following:
 * if you –enable-mbstring in the php.ini it seems to work alight.
 * source-
    [https://wordpress.org/support/topic/loaded-the-plugin-and-now-i-cant-access-my-cms?replies=7](https://wordpress.org/support/topic/loaded-the-plugin-and-now-i-cant-access-my-cms?replies=7)

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

The topic ‘crashed my WP MultiSite’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/simple-subscribe_99d436.svg)
 * [Simple Subscribe](https://wordpress.org/plugins/simple-subscribe/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/simple-subscribe/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/simple-subscribe/)
 * [Active Topics](https://wordpress.org/support/plugin/simple-subscribe/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/simple-subscribe/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/simple-subscribe/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [tanaylakhani](https://wordpress.org/support/users/tanaylakhani/)
 * Last activity: [12 years, 1 month ago](https://wordpress.org/support/topic/crashed-my-wp-multisite/#post-7865248)