Title: Fatal error – failed activation Last modified: January 31, 2020 --- # Fatal error – failed activation * Resolved [olhodocao](https://wordpress.org/support/users/olhodocao/) * (@olhodocao) * [6 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-failed-activation/) * Hi! We we’re using this amazing plugin in our demo website to test it, as we we’re testing everything before deploying the website in [http://www.olhodocao.pt](http://www.olhodocao.pt). We use duplicator plugin to clone the website from olhodocao.pt/demo to olhodocao. pt. Everything went just fine, except the SSL certificate. We can’t activate the plugin and it displays the following error: * Plugin could not be activated because it triggered a fatal error. Fatal error: Uncaught TypeError: Argument 1 passed to Freemius::get_api_user_scope_by_user() must be an instance of FS_User, boolean given, called in /home/olhodoca/public_html/ wp-content/plugins/ssl-zen/freemius/includes/class-freemius.php on line 22011 and defined in /home/olhodoca/public_html/wp-content/plugins/ssl-zen/freemius/ includes/class-freemius.php:22025 Stack trace: #0 /home/olhodoca/public_html/ wp-content/plugins/ssl-zen/freemius/includes/class-freemius.php(22011): Freemius- >get_api_user_scope_by_user(false) #1 /home/olhodoca/public_html/wp-content/plugins/ ssl-zen/freemius/includes/class-freemius.php(22050): Freemius->get_api_user_scope( false) #2 /home/olhodoca/public_html/wp-content/plugins/ssl-zen/freemius/includes/ class-freemius.php(19079): Freemius->get_current_or_network_user_api_scope() # 3 /home/olhodoca/public_html/wp-content/plugins/ssl-zen/freemius/includes/class- freemius.php(11120): Freemius->_fetch_plugin_plans() #4 /home/olhodoca/public_html/ wp-content/plugins/ssl-zen/freemius/includes/class-freemi in /home/olhodoca/public_html/ wp-content/plugins/ssl-zen/freemius/includes/class-freemius.php on line 22025 * We already deleted all certificates to try to re-install and re-activate the zen ssl plugin, but the same message continues to appear and we still cant activate the plugin… Can someone help us?? And tell us what to do to make this plugin and ssl certificates work again? * Thank you! * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-failed-activation%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 5 replies - 1 through 5 (of 5 total) * Plugin Author [SSL Zen – Free SSL/HTTPS](https://wordpress.org/support/users/sslzen/) * (@sslzen) * [6 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-failed-activation/#post-12389656) * [@olhodocao](https://wordpress.org/support/users/olhodocao/) Thanks for trying our plugin 🙂 We are here to help you. * I see a valid certificate on your website at [https://olhodocao.pt](https://olhodocao.pt) * There are a few things missing though, you have to update your website url to [https://olhodocao.pt](https://olhodocao.pt) instead of [http://olhodocao.pt](http://olhodocao.pt) * Your website has mixed content. You can fix it by installing a plugin such as Really Simpe SSL or replace http:// with https:// using Better Search Replace plugin. * Once you do the above, your website will be https 🙂 * If you need more help, please feel free to ask us here. * [blackink442](https://wordpress.org/support/users/blackink442/) * (@blackink442) * [6 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-failed-activation/#post-12389894) * I have downloaded added the . well-known file into my website Bizideas4beginners. com public_html but the domain verification still fails. I have tried and I’m still trying to get it fixed but to no avail. Please what could be the problem? * Thread Starter [olhodocao](https://wordpress.org/support/users/olhodocao/) * (@olhodocao) * [6 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-failed-activation/#post-12397421) * Thank you very much [@sslzen](https://wordpress.org/support/users/sslzen/) for your help! It worked! We run both plugins and the certificate part is ok, all the website is in HPPTS. But still we can’t activate SSL ZEN plugin. Same error. The certificate will expire soon and if we can’t activate the plugin, how will we renew the certificate? * Thanks again for the help! * Plugin Author [SSL Zen – Free SSL/HTTPS](https://wordpress.org/support/users/sslzen/) * (@sslzen) * [6 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-failed-activation/#post-12397442) * [@olhodocao](https://wordpress.org/support/users/olhodocao/) Could you please send an email to support[@]sslzen(dot)com with the URLs of both the websites? * Thread Starter [olhodocao](https://wordpress.org/support/users/olhodocao/) * (@olhodocao) * [6 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-failed-activation/#post-12397488) * [@sslzen](https://wordpress.org/support/users/sslzen/) yes, we’ll send you an email explaining the situation. * Thanks again for the support! Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘Fatal error – failed activation’ is closed to new replies. * ![](https://ps.w.org/ssl-zen/assets/icon.svg?rev=2252754) * [SSL Zen — SSL Certificate Installer & HTTPS Redirects](https://wordpress.org/plugins/ssl-zen/) * [Frequently Asked Questions](https://wordpress.org/plugins/ssl-zen/#faq) * [Support Threads](https://wordpress.org/support/plugin/ssl-zen/) * [Active Topics](https://wordpress.org/support/plugin/ssl-zen/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/ssl-zen/unresolved/) * [Reviews](https://wordpress.org/support/plugin/ssl-zen/reviews/) * 5 replies * 3 participants * Last reply from: [olhodocao](https://wordpress.org/support/users/olhodocao/) * Last activity: [6 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-failed-activation/#post-12397488) * Status: resolved