Title: API key problem Last modified: August 31, 2016 --- # API key problem * [noonsense](https://wordpress.org/support/users/noonsense/) * (@noonsense) * [10 years, 1 month ago](https://wordpress.org/support/topic/api-key-problem-5/) * Hi , when i’m entering API key , I get ” Sorry, an error occurred. ” * cURL is installed. Have checked with this code // Define function to test function _is_curl_installed() { if (in_array (‘curl’, get_loaded_extensions())) { return true; } else { return false; } } * // Ouput text to user based on test if (_is_curl_installed()) { echo “cURL is installed on this server

”; } else { echo“ cURL is NOT installed on this server

”; } * [https://wordpress.org/plugins/challonge/](https://wordpress.org/plugins/challonge/) Viewing 3 replies - 1 through 3 (of 3 total) * Plugin Author [zavaboy](https://wordpress.org/support/users/zavaboy/) * (@zavaboy) * [10 years, 1 month ago](https://wordpress.org/support/topic/api-key-problem-5/#post-7277856) * Yeah, this problem is definitely not a cURL issue. You will get a notice after activating the plugin if you don’t have cURL installed. * Anyway, this error indicates a failure with the JSON request when validating the API key field. This validation check will not stop you from saving your API key. Your entered API key could still work. Have you tried saving your settings anyway? If you enter `[challonge]` into a post or page, does it successfully load a listing of your tournaments? * If it works, great! * Either way, I still would like to get that validation error fixed. It could be caused by another plugin you have installed. It would help me if you could let me know which plugins you have installed and activated. * Thanks for your feedback! 🙂 * Thread Starter [noonsense](https://wordpress.org/support/users/noonsense/) * (@noonsense) * [10 years, 1 month ago](https://wordpress.org/support/topic/api-key-problem-5/#post-7277859) * Hi thank you for your answer. I get “No API Key! Set one.” on [challonge] page. Firebug shows this response on admin page , when I’m entering the key RESPONSE 500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, [support@one.com](https://wordpress.org/support/topic/api-key-problem-5/support@one.com?output_format=md) and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

HEADERS Age 0 Connection keep-alive Content-Encoding gzip Content-Length 341 Content-Type text/html; charset =iso-8859-1 Date Sun, 17 Apr 2016 11:10:30 GMT Server Apache Vary Accept-Encoding Via 1.1 varnish-v4 X-Varnish 830196727 view source Accept application/json, text/ javascript, */*; q=0.01 Accept-Encoding gzip, deflate Accept-Language en-GB,en; q=0.5 Cookie bla bla bla, cookie hash… Host [http://www.goldenesports1.com](http://www.goldenesports1.com) Referer [http://www.goldenesports1.com/wp-admin/options-general.php?page=challonge-settings](http://www.goldenesports1.com/wp-admin/options-general.php?page=challonge-settings) User-Agent Mozilla/5.0 (Windows NT 6.3; WOW64; rv:44.0) Gecko/20100101 Firefox/ 44.0 X-Requested-With XMLHttpRequest * Installed and activated plugins list BetPress Challonge Custom Login EZ SHORTCURL Shortcodes to Fetch and Parse External Content Fan Victor Fusion Core LayerSlider WP Paid Member Subscriptions Password Protected Profile Builder Slider Revolution WP-ServerInfo * Plugin Author [zavaboy](https://wordpress.org/support/users/zavaboy/) * (@zavaboy) * [10 years, 1 month ago](https://wordpress.org/support/topic/api-key-problem-5/#post-7277918) * I tested with most of the plugins (the free ones) you listed and everything seems to work. Seeing that it is a 500 error in the response, this could be fatal error that occurred but PHP’s display_errors setting is off. * You have the WP-ServerInfo plugin, so you can check what display_errors is set to in the PHP information. * If it is off, try adding the following line to **challonge.php** just above the** require_once** statement in the last several lines of the file: `ini_set('display_errors', true);` Now try the AJAX request again. If you see errors in the response body, let me know what they are, especially if they are from Challonge. (No need to include the HTTP headers this time.) * Let me know what you find out and we’ll work from there. 🙂 Viewing 3 replies - 1 through 3 (of 3 total) The topic ‘API key problem’ is closed to new replies. * ![](https://ps.w.org/challonge/assets/icon.svg?rev=1044546) * [Challonge](https://wordpress.org/plugins/challonge/) * [Frequently Asked Questions](https://wordpress.org/plugins/challonge/#faq) * [Support Threads](https://wordpress.org/support/plugin/challonge/) * [Active Topics](https://wordpress.org/support/plugin/challonge/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/challonge/unresolved/) * [Reviews](https://wordpress.org/support/plugin/challonge/reviews/) * 3 replies * 2 participants * Last reply from: [zavaboy](https://wordpress.org/support/users/zavaboy/) * Last activity: [10 years, 1 month ago](https://wordpress.org/support/topic/api-key-problem-5/#post-7277918) * Status: not resolved