Title: Cannot activate plugin
Last modified: August 20, 2016

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# Cannot activate plugin

 *  Resolved [kmcquaid](https://wordpress.org/support/users/kmcquaid/)
 * (@kmcquaid)
 * [13 years, 6 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-2/)
 * I am having trouble getting this plug in to work but it is probably because I
   don’t usually use plug-ins so haven’t understood the instructions properly.
 * I installed the plugin and tried to activated it but I get a server error. I 
   then lose my website completly and have to rename my plugins folder to restore
   the website.
 * Any ideas what is happening ?
 * [http://wordpress.org/extend/plugins/wp-publication-archive/](http://wordpress.org/extend/plugins/wp-publication-archive/)

Viewing 7 replies - 1 through 7 (of 7 total)

 *  Plugin Author [Eric Mann](https://wordpress.org/support/users/ericmann/)
 * (@ericmann)
 * [13 years, 6 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-2/#post-3133598)
 * From the looks of your posting, you’re using WordPress 3.1.1. The current version
   of WordPress is 3.4.2. Upgrading might fix your issue …
 * But just to figure things out, what server error are you seeing?
 *  Thread Starter [kmcquaid](https://wordpress.org/support/users/kmcquaid/)
 * (@kmcquaid)
 * [13 years, 6 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-2/#post-3133599)
 * The server error is a HTTP 500 error. The error message itself is:
 * The website encountered an error while retrieving [http://www.kamac.co.uk/sjic/wp-admin/](http://www.kamac.co.uk/sjic/wp-admin/).
   It may be down for maintenance or configured incorrectly.
 * I am using WordPress 3.1.1. I’d rather not upgrade WordPress at this point in
   time.
 *  Plugin Author [Eric Mann](https://wordpress.org/support/users/ericmann/)
 * (@ericmann)
 * [13 years, 6 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-2/#post-3133632)
 * Can you check your server error logs? Those would give me a better idea what 
   the actual error is that you’re facing.
 *  Plugin Author [Eric Mann](https://wordpress.org/support/users/ericmann/)
 * (@ericmann)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-2/#post-3133690)
 * Since the plugin no longer supports version 3.1.1. I’m marking this as “not a
   support question” for now (rather than inaccurately marking it as resolved).
 *  [szymcio2001](https://wordpress.org/support/users/szymcio2001/)
 * (@szymcio2001)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-2/#post-3133691)
 * I have the same problem using WP version 3.4.2 and plugin version 2.5.3. The 
   server error is:
 * PHP Parse error: syntax error, unexpected $end in /srv/www/vhosts/iin/wp-content/
   plugins/wp-publication-archive/lib/class.wp-publication-archive.php on line 765
 * It is probably something similar to:
 * [http://wordpress.org/support/topic/wp-publication-archive-activation-error](http://wordpress.org/support/topic/wp-publication-archive-activation-error)
 * But the solution with removing ?> tag does not work. I am using Linux with PHP
   5.3.5 and Apache 2.2.17.
 *  Plugin Author [Eric Mann](https://wordpress.org/support/users/ericmann/)
 * (@ericmann)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-2/#post-3133692)
 * [@szymcio2001](https://wordpress.org/support/users/szymcio2001/) Please open 
   a new support thread since this one has already been marked as “not a support
   question.”
 *  Plugin Author [Eric Mann](https://wordpress.org/support/users/ericmann/)
 * (@ericmann)
 * [13 years, 3 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-2/#post-3133694)
 * [@szymcio2001](https://wordpress.org/support/users/szymcio2001/) Please update
   to version 2.5.7, which fixes this issue.

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Cannot activate plugin’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/wp-publication-archive_e8e9e7.svg)
 * [WP Publication Archive](https://wordpress.org/plugins/wp-publication-archive/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-publication-archive/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-publication-archive/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-publication-archive/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-publication-archive/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-publication-archive/reviews/)

 * 7 replies
 * 3 participants
 * Last reply from: [Eric Mann](https://wordpress.org/support/users/ericmann/)
 * Last activity: [13 years, 3 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-2/#post-3133694)
 * Status: resolved