Title: Error 500 on plugin install
Last modified: August 20, 2016

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# Error 500 on plugin install

 *  Resolved [danutz68](https://wordpress.org/support/users/danutz68/)
 * (@danutz68)
 * [13 years, 3 months ago](https://wordpress.org/support/topic/error-500-on-plugin-install/)
 * When I try to install this plugin, the browser give’s me ERROR 500 and on apache2
   error.log file I found this error:
 * [Wed Mar 06 15:43:41 2013] [error] [client 192.168.10.64] PHP Fatal error: Call
   to undefined function register_field() in /var/www/wp-content/plugins/buckets/
   buckets.php on line 76
 * I use WordPress 3.5.1 with Gantry Framework and Template.
 * Danut S
 * [http://wordpress.org/extend/plugins/buckets/](http://wordpress.org/extend/plugins/buckets/)

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

 *  Thread Starter [danutz68](https://wordpress.org/support/users/danutz68/)
 * (@danutz68)
 * [13 years, 3 months ago](https://wordpress.org/support/topic/error-500-on-plugin-install/#post-3534064)
 * Hi again.
 * Seems to be some incompatibility problem with Advanced Custom Field plugin. I
   uninstalled ACF plugin and now everything seems to be fine.
 *  [ferne97](https://wordpress.org/support/users/ferne97/)
 * (@ferne97)
 * [13 years ago](https://wordpress.org/support/topic/error-500-on-plugin-install/#post-3534374)
 * Getting the same error when trying to activate the plugin.
 * `Fatal error: Call to undefined function register_field() in /wp-content/plugins/
   buckets/buckets.php on line 76`
 * I am running WordPress 3.6 beta 3 but get the same error on 3.5.1 as well. I’m
   using version 4.1.4 of Advanced Custom Fields.
 *  [reneequinn](https://wordpress.org/support/users/reneequinn/)
 * (@reneequinn)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/error-500-on-plugin-install/#post-3534379)
 * I’m getting the same error. Deactivated ACF and all works well, reactivate and
   same problem. I think I’ll try Widget Builder or similar.

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

The topic ‘Error 500 on plugin install’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/buckets.svg)
 * [Buckets](https://wordpress.org/plugins/buckets/)
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 * [Support Threads](https://wordpress.org/support/plugin/buckets/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/buckets/unresolved/)
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 * 3 replies
 * 3 participants
 * Last reply from: [reneequinn](https://wordpress.org/support/users/reneequinn/)
 * Last activity: [12 years, 11 months ago](https://wordpress.org/support/topic/error-500-on-plugin-install/#post-3534379)
 * Status: resolved