Title: Activation Fail
Last modified: September 1, 2016

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# Activation Fail

 *  Resolved [samnoonan](https://wordpress.org/support/users/samnoonan/)
 * (@samnoonan)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/activation-fail-2/)
 * The plugin will not activate. It gives me this error. Fatal error: Call to undefined
   function mb_internal_encoding() in /home/samnoona/public_html/wp-content/plugins/
   cbratingsystem/cbratingsystem.php on line 30
 * [https://wordpress.org/plugins/cbratingsystem/](https://wordpress.org/plugins/cbratingsystem/)

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

 *  Plugin Author [Sabuj Kundu](https://wordpress.org/support/users/manchumahara/)
 * (@manchumahara)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/activation-fail-2/#post-7658560)
 * Hi,
 * It seems your php doesn’t has mb string extension which is very common now a 
   days as unicode is very common for different sites.
 * please ask your host to enable php-mbstring in php ini file
 * Hope this will help. I will wait for your response.
 *  Plugin Author [Sabuj Kundu](https://wordpress.org/support/users/manchumahara/)
 * (@manchumahara)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/activation-fail-2/#post-7658737)
 * Did you able to solve this ?
 *  Thread Starter [samnoonan](https://wordpress.org/support/users/samnoonan/)
 * (@samnoonan)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/activation-fail-2/#post-7658760)
 * Yes it did, thank you

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

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

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 * 3 replies
 * 2 participants
 * Last reply from: [samnoonan](https://wordpress.org/support/users/samnoonan/)
 * Last activity: [9 years, 9 months ago](https://wordpress.org/support/topic/activation-fail-2/#post-7658760)
 * Status: resolved