Title: Error when activating premium version
Last modified: August 30, 2016

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# Error when activating premium version

 *  Resolved [roehmj1](https://wordpress.org/support/users/roehmj1/)
 * (@roehmj1)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/error-when-activating-premium-version/)
 * I’m trying to activate the premium version I just purchased. I am receiving the
   following error:
 * Plugin could not be activate because it triggered a fatal error.
 * Fatal error: Cannot redeclare class core_pdf_embedder in /home/content/43/11746943/
   html/wp-content/plugins/pdfembedder-premium/core/core_pdf_embedder.php on line
   3
 * [https://wordpress.org/plugins/pdf-embedder/](https://wordpress.org/plugins/pdf-embedder/)

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

 *  [danlester](https://wordpress.org/support/users/danlester/)
 * (@danlester)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/error-when-activating-premium-version/#post-6516748)
 * I think I already replied to you by email. For the benefit of anyone else reading,
   I believe the free version of the plugin had to be deactivated first before activation
   of the premium version will work.
 * Thanks,
 * Dan
 *  Thread Starter [roehmj1](https://wordpress.org/support/users/roehmj1/)
 * (@roehmj1)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/error-when-activating-premium-version/#post-6516754)
 * That took care of it. Thank you!

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

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## Tags

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

 * 2 replies
 * 2 participants
 * Last reply from: [roehmj1](https://wordpress.org/support/users/roehmj1/)
 * Last activity: [10 years, 9 months ago](https://wordpress.org/support/topic/error-when-activating-premium-version/#post-6516754)
 * Status: resolved