Title: can't register
Last modified: August 22, 2016

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# can't register

 *  Resolved [veronica_mars](https://wordpress.org/support/users/veronica_mars/)
 * (@veronica_mars)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/cant-register-7/)
 * Fatal error: Call to undefined function mcrypt_decrypt() in /home/v2test/public_html/
   debraB/wp-content/plugins/front-end-only-users/Functions/Prepare_Data_For_Insertion.
   php on line 120
 * When I try to register, I receive the above error message. Any idea what I am
   doing wrong?
 * [https://wordpress.org/plugins/front-end-only-users/](https://wordpress.org/plugins/front-end-only-users/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Rustaurius](https://wordpress.org/support/users/rustaurius/)
 * (@rustaurius)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/cant-register-7/#post-5607410)
 * Hi Veronica,
 * It looks like your PHP install doesn’t have the mcrypt encryption module activated.
   Here’s a link on how to activate it:
 * [http://stackoverflow.com/questions/20872597/call-to-undefined-function-mcrypt-decrypt-even-when-php5-mcrypt-installed](http://stackoverflow.com/questions/20872597/call-to-undefined-function-mcrypt-decrypt-even-when-php5-mcrypt-installed)

Viewing 1 replies (of 1 total)

The topic ‘can't register’ is closed to new replies.

 * ![](https://ps.w.org/front-end-only-users/assets/icon-128x128.png?rev=1805921)
 * [Front End Users](https://wordpress.org/plugins/front-end-only-users/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/front-end-only-users/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/front-end-only-users/)
 * [Active Topics](https://wordpress.org/support/plugin/front-end-only-users/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/front-end-only-users/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/front-end-only-users/reviews/)

## Tags

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

 * 1 reply
 * 2 participants
 * Last reply from: [Rustaurius](https://wordpress.org/support/users/rustaurius/)
 * Last activity: [11 years, 4 months ago](https://wordpress.org/support/topic/cant-register-7/#post-5607410)
 * Status: resolved