Title: Plugin Conflict
Last modified: August 30, 2016

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# Plugin Conflict

 *  Resolved [knill13](https://wordpress.org/support/users/knill13/)
 * (@knill13)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/plugin-conflict-91/)
 * Fatal error: Call to undefined function is_user_logged_in() in D:\xampp\apps\
   wordpress\htdocs\wp-content\plugins\user-language-switch\user-language-switch.
   php on line 117
 * I get this error when plugin active with wpMandrill plugin
 * [https://wordpress.org/plugins/user-language-switch/](https://wordpress.org/plugins/user-language-switch/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Webilop](https://wordpress.org/support/users/webilop/)
 * (@webilop)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/plugin-conflict-91/#post-6331145)
 * Hi there,
 * In advance, thanks for your feedback.
 * We are preparing a new release with several fixes and enhancements, one of the
   fixes is related to this bug.
 * We are planning to do the release approximately in 2 weeks, if you need to make
   your site multi-language urgently, then please try another plugin. If you can
   wait and you want to help us testing the new release please write to us to [contact@webilop.com](https://wordpress.org/support/topic/plugin-conflict-91/contact@webilop.com?output_format=md)
 * Regards,
 * The Webilop Team
 *  Plugin Author [Webilop](https://wordpress.org/support/users/webilop/)
 * (@webilop)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/plugin-conflict-91/#post-6331207)
 * We have uploaded a patch to fix this error, please check if it works for you 
   now.
 * Regards,
 * The Webilop Team

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Plugin Conflict’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/user-language-switch_75afe1.svg)
 * [User Language Switch](https://wordpress.org/plugins/user-language-switch/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/user-language-switch/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/user-language-switch/)
 * [Active Topics](https://wordpress.org/support/plugin/user-language-switch/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/user-language-switch/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/user-language-switch/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [Webilop](https://wordpress.org/support/users/webilop/)
 * Last activity: [10 years, 10 months ago](https://wordpress.org/support/topic/plugin-conflict-91/#post-6331207)
 * Status: resolved