Title: [Plugin: Really Simple CAPTCHA] No valid header
Last modified: August 20, 2016

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# [Plugin: Really Simple CAPTCHA] No valid header

 *  [Andreas](https://wordpress.org/support/users/sauerland/)
 * (@sauerland)
 * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-really-simple-captcha-no-valid-header/)
 * Trying to activate the plugin for the entire network, I get the message “Plugin
   has no valid header”.
 * When I try to activate the plugin for at least one site, it doesn’t even appear
   in the site’s plugin list.
 * [http://wordpress.org/extend/plugins/really-simple-captcha/](http://wordpress.org/extend/plugins/really-simple-captcha/)

Viewing 1 replies (of 1 total)

 *  [vuarchex](https://wordpress.org/support/users/vuarchex/)
 * (@vuarchex)
 * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-really-simple-captcha-no-valid-header/#post-2495288)
 * same thing for me!

Viewing 1 replies (of 1 total)

The topic ‘[Plugin: Really Simple CAPTCHA] No valid header’ is closed to new replies.

 * ![](https://ps.w.org/really-simple-captcha/assets/icon-256x256.png?rev=1047241)
 * [Really Simple CAPTCHA](https://wordpress.org/plugins/really-simple-captcha/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/really-simple-captcha/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/really-simple-captcha/)
 * [Active Topics](https://wordpress.org/support/plugin/really-simple-captcha/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/really-simple-captcha/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/really-simple-captcha/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [vuarchex](https://wordpress.org/support/users/vuarchex/)
 * Last activity: [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-really-simple-captcha-no-valid-header/#post-2495288)
 * Status: not resolved