Title: Fatal error, cannot activate
Last modified: October 24, 2020

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# Fatal error, cannot activate

 *  Resolved [Malae](https://wordpress.org/support/users/malae/)
 * (@malae)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/)
 * I have tried to install the plugin on a new site and have the following issue:
 * Plugin could not be activated because it triggered a fatal error.
 * `Warning: A non-numeric value encountered in /wp-content/plugins/coming-soon/
   app/backwards/backwards_compatibility.php on line 43`
 * I have never experienced this error before on sites on this server with the same
   theme and WordPress version. This occurred before the recent updates and still
   occurs with plugin version 6.0.8.3.

Viewing 8 replies - 1 through 8 (of 8 total)

 *  Plugin Author [SeedProd](https://wordpress.org/support/users/seedprod/)
 * (@seedprod)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/#post-13575538)
 * Stange, let me take a look at this and I’ll see what is going on today and get
   back to you.
 *  Plugin Author [SeedProd](https://wordpress.org/support/users/seedprod/)
 * (@seedprod)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/#post-13575549)
 * Do you know which version of php your site is running?
 *  Thread Starter [Malae](https://wordpress.org/support/users/malae/)
 * (@malae)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/#post-13576832)
 * Hi John,
    Indeed this is strange. PHP ver. 7.4.11.
 *  Plugin Author [SeedProd](https://wordpress.org/support/users/seedprod/)
 * (@seedprod)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/#post-13577770)
 * Ok, let me take a look!
 *  Thread Starter [Malae](https://wordpress.org/support/users/malae/)
 * (@malae)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/#post-13579625)
 * I have set wp-debug and have additional information from the log:
 *     ```
       PHP Fatal error:  Uncaught Error: Unsupported operand types in /wp-content/plugins/coming-soon/app/backwards/backwards_compatibility.php:43
       Stack trace:
       #0 /wp-content/plugins/coming-soon/coming-soon.php(53): seedprod_lite_check_for_free_version()
       #1 /wp-includes/class-wp-hook.php(287): seedprod_lite_activation('')
       #2 /wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters('', Array)
       #3 /wp-includes/plugin.php(478): WP_Hook->do_action(Array)
       #4 /wp-admin/plugins.php(193): do_action('activate_coming...')
       #5 {main} thrown in /wp-content/plugins/coming-soon/app/backwards/backwards_compatibility.php on line 43
       ```
   
 *  Plugin Author [SeedProd](https://wordpress.org/support/users/seedprod/)
 * (@seedprod)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/#post-13581609)
 * I was unable to reproduce with PHP 7.4. Can you email us at [support@seedprod.com](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/support@seedprod.com?output_format=md)
   I have a few more questions about your environment setup?
 *  Thread Starter [Malae](https://wordpress.org/support/users/malae/)
 * (@malae)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/#post-13590323)
 * Hi John,
 * I have good news. Both the old (5.1.2) and new (6.0.8.3) versions are now loading
   without any issues on both my LAMP localhost and hosting. I cannot determine 
   exactly what was causing the fatal error. I think it was database related from
   some changes introduced by the new verion releases. I had run repairs on the 
   databases, but can’t pinpoint the cause.
 *  Plugin Support [franz1989](https://wordpress.org/support/users/franz1989/)
 * (@franz1989)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/#post-13591602)
 * Thank you for the update! Glad that both versions work now. Should you need further
   assistance, do let us know.

Viewing 8 replies - 1 through 8 (of 8 total)

The topic ‘Fatal error, cannot activate’ is closed to new replies.

 * ![](https://ps.w.org/coming-soon/assets/icon-256x256.png?rev=2402574)
 * [Website Builder by SeedProd — Theme Builder, Landing Page Builder, Coming Soon Page, Maintenance Mode](https://wordpress.org/plugins/coming-soon/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/coming-soon/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/coming-soon/)
 * [Active Topics](https://wordpress.org/support/plugin/coming-soon/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/coming-soon/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/coming-soon/reviews/)

## Tags

 * [cannot activate](https://wordpress.org/support/topic-tag/cannot-activate/)
 * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/)

 * 8 replies
 * 3 participants
 * Last reply from: [franz1989](https://wordpress.org/support/users/franz1989/)
 * Last activity: [5 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-cannot-activate-9/#post-13591602)
 * Status: resolved