Title: Error: no valid header(?)
Last modified: August 24, 2016

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# Error: no valid header(?)

 *  Resolved [szfpro](https://wordpress.org/support/users/szfpro/)
 * (@szfpro)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/error-no-valid-header/)
 * When I try to activate your plugin I see the following error:
 * “The plugin wp-force-ssl/plugin.php has been deactivated due to an error: The
   plugin does not have a valid header.”
 * [https://wordpress.org/plugins/wp-force-ssl/](https://wordpress.org/plugins/wp-force-ssl/)

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

 *  [Kostas Vrouvas](https://wordpress.org/support/users/kosvrouvas/)
 * (@kosvrouvas)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/error-no-valid-header/#post-6040133)
 * Can you please give me more info about your setup? Eg. PHP version etc.
 * If you have PHP 5.2, I dropped support for this version, normaly you should have
   got a message about it.
 *  Thread Starter [szfpro](https://wordpress.org/support/users/szfpro/)
 * (@szfpro)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/error-no-valid-header/#post-6040217)
 * Home URL: [https://www.audiofusion.com](https://www.audiofusion.com)
    Site URL:
   [https://www.audiofusion.com](https://www.audiofusion.com) Ultimatum Theme Version:
   2.7.6 WP Version: WP 3.9.2 Web Server Info: Apache/2.4.12 (Unix) OpenSSL/1.0.1e-
   fips mod_bwlimited/1.4 mod_fcgid/2.3.10-dev PHP Version: 5.4.37 MySQL Version:
   5.5.35-cll-lve
 *  [Kostas Vrouvas](https://wordpress.org/support/users/kosvrouvas/)
 * (@kosvrouvas)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/error-no-valid-header/#post-6040230)
 * Are you using any cache plugins? I’ll try to reproduce locally your setup, at
   least the WP version & PHP, and also inspect the plugin code again.
 * I may need you to test some beta versions before I push an update.
 *  [Kostas Vrouvas](https://wordpress.org/support/users/kosvrouvas/)
 * (@kosvrouvas)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/error-no-valid-header/#post-6040258)
 * Never mind, found the issue, pushed an update. Please give a feedback.

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

The topic ‘Error: no valid header(?)’ is closed to new replies.

 * ![](https://ps.w.org/wp-force-ssl/assets/icon-256x256.png?rev=2649905)
 * [WP Force SSL & HTTPS SSL Redirect](https://wordpress.org/plugins/wp-force-ssl/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-force-ssl/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-force-ssl/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-force-ssl/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-force-ssl/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-force-ssl/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [Kostas Vrouvas](https://wordpress.org/support/users/kosvrouvas/)
 * Last activity: [11 years, 1 month ago](https://wordpress.org/support/topic/error-no-valid-header/#post-6040258)
 * Status: resolved