Title: Fatal error when activating
Last modified: August 21, 2016

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# Fatal error when activating

 *  Resolved [infiniteagency](https://wordpress.org/support/users/infiniteagency/)
 * (@infiniteagency)
 * [12 years ago](https://wordpress.org/support/topic/fatal-error-when-activating-20/)
 * When updating the leadin plugin I receive the error
 * Plugin could not be activated because it triggered a fatal error.
    Fatal error:
   Cannot redeclare class Parser in \wp-content\plugins\leadin\admin\inc\sources\
   Snowplow\RefererParser\Parser.php on line 7
 * when trying to activate. Also it seems like the contacts where not storing before
   the update either. I have had multiple form inquiries but no contact have been
   stored.
 * the domain that I am troubleshooting at this time is [http://www.smartstartinc.com](http://www.smartstartinc.com)
 * [https://wordpress.org/plugins/leadin/](https://wordpress.org/plugins/leadin/)

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [Andy Cook](https://wordpress.org/support/users/andygcook/)
 * (@andygcook)
 * [12 years ago](https://wordpress.org/support/topic/fatal-error-when-activating-20/#post-5038621)
 * Sorry about the issue and thanks for sharing the error. I know why the PHP error
   is being thrown and will included a fix in the next release of LeadIn, which 
   should be out by the end of the week.
 * I’ll help you debug why the contacts aren’t storing once we get the plugin up
   and running correctly on your site. Thanks for your patience and we’ll get these
   problems fixed as soon as possible.
 *  [Andy Cook](https://wordpress.org/support/users/andygcook/)
 * (@andygcook)
 * [12 years ago](https://wordpress.org/support/topic/fatal-error-when-activating-20/#post-5038626)
 * We just discovered why the contacts aren’t showing up in the contact list and
   will be launching a fix for that bug as well later today. Thanks for the heads
   up!
 *  [Andy Cook](https://wordpress.org/support/users/andygcook/)
 * (@andygcook)
 * [12 years ago](https://wordpress.org/support/topic/fatal-error-when-activating-20/#post-5038631)
 * Both of these issues should be fixed in LeadIn 1.2.0 and you should be able to
   resolve them both by upgrading to the latest version.
 * I have my fingers crossed the upgrade will solve the activation problems, and
   please email if you run into any snags – [andy@leadin.com](https://wordpress.org/support/topic/fatal-error-when-activating-20/andy@leadin.com?output_format=md)
 *  Thread Starter [infiniteagency](https://wordpress.org/support/users/infiniteagency/)
 * (@infiniteagency)
 * [12 years ago](https://wordpress.org/support/topic/fatal-error-when-activating-20/#post-5038717)
 * Hey Andy, the updates fixed the activation error so thank you! but my contacts
   still aren’t being added to the list. My clients server doesn’t allow external
   email addresses to be hit so I feel like that might be part of the issue. Is 
   there anyway you could check it out and make sure it isn’t anything with the 
   plugin?? [http://www.smartstartinc.com](http://www.smartstartinc.com)

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Fatal error when activating’ is closed to new replies.

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## Tags

 * [activate](https://wordpress.org/support/topic-tag/activate/)
 * [contacts](https://wordpress.org/support/topic-tag/contacts/)
 * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/)

 * 4 replies
 * 2 participants
 * Last reply from: [infiniteagency](https://wordpress.org/support/users/infiniteagency/)
 * Last activity: [12 years ago](https://wordpress.org/support/topic/fatal-error-when-activating-20/#post-5038717)
 * Status: resolved