Title: Fatal error cause when input the API setting Last modified: May 27, 2021 --- # Fatal error cause when input the API setting * Resolved [lmn40227](https://wordpress.org/support/users/lmn40227/) * (@lmn40227) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/) * when I try to save the setting, error shows: * Fatal error: Uncaught Error: Call to undefined method WC_Gateway_Amazon_Payments_Advanced_Legacy:: update_option() in XXX/public_html/wp-content/plugins/woocommerce-gateway-amazon- payments-advanced/includes/class-wc-amazon-payments-advanced-api.php on line 89 * Call stack: * WC_Amazon_Payments_Advanced_API::validate_api_keys() wp-content/plugins/woocommerce- gateway-amazon-payments-advanced/includes/class-wc-gateway-amazon-payments-advanced- abstract.php:806 WC_Gateway_Amazon_Payments_Advanced_Abstract::validate_api_keys() wp-includes/class-wp-hook.php:286 WP_Hook::apply_filters() wp-includes/class- wp-hook.php:310 WP_Hook::do_action() wp-includes/plugin.php:465 do_action() wp- content/plugins/woocommerce/includes/admin/settings/class-wc-settings-checkout. php:372 WC_Settings_Payment_Gateways::save() wp-includes/class-wp-hook.php:286 WP_Hook::apply_filters() wp-includes/class-wp-hook.php:310 WP_Hook::do_action() wp-includes/plugin.php:465 do_action() wp-content/plugins/woocommerce/includes/ admin/class-wc-admin-settings.php:77 WC_Admin_Settings::save() wp-content/plugins/ woocommerce/includes/admin/class-wc-admin-menus.php:105 WC_Admin_Menus::settings_page_init() wp-includes/class-wp-hook.php:286 WP_Hook::apply_filters() wp-includes/class- wp-hook.php:310 WP_Hook::do_action() wp-includes/plugin.php:465 do_action() wp- admin/admin.php:211 Viewing 10 replies - 1 through 10 (of 10 total) * Plugin Support [Sol J. a11n](https://wordpress.org/support/users/solstudioim/) * (@solstudioim) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14492674) * Hi there [@lmn40227](https://wordpress.org/support/users/lmn40227/) * It appears to be that your WooCommerce Amazon Pay files are broken. * Could you please download the latest version and then upload the files to your WP-content/plugin-name-folder? * Then try to reload or try again to save. * Let me know how it goes! * Thread Starter [lmn40227](https://wordpress.org/support/users/lmn40227/) * (@lmn40227) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14494822) * Hi Sol, * I download the latest version, upload and install. * same issue still occur. * thanks cory * Thread Starter [lmn40227](https://wordpress.org/support/users/lmn40227/) * (@lmn40227) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14494825) * and it’s the same error. * Plugin Support [Christian](https://wordpress.org/support/users/christian1983/) * (@christian1983) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14495952) * Hey [@lmn40227](https://wordpress.org/support/users/lmn40227/) * Hope you are doing well! * try to check the following link [conflict test](https://docs.woocommerce.com/document/how-to-test-for-conflicts/) on a Staging site, could be some plugin or even the Theme you are using. We need to isolate the problem first. * If you can’t find the issue, please contact us at WooCommerce.com > My Account > Support. You may need to create an account before you can access that page. Please include a link to this forum thread, so that we can keep track of what’s already been done. We will be able to help you further there. * Best, Christian - This reply was modified 4 years, 11 months ago by [Christian](https://wordpress.org/support/users/christian1983/). * Thread Starter [lmn40227](https://wordpress.org/support/users/lmn40227/) * (@lmn40227) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14509127) * Hi Christian, * I Disabled all plugins and using the default theme, still showing the same issue. * Thanks Cory * Plugin Support [Sol J. a11n](https://wordpress.org/support/users/solstudioim/) * (@solstudioim) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14512198) * Hi Cory [@lmn40227](https://wordpress.org/support/users/lmn40227/) * That’s really odd 🙁 * Could you please send me a copy of your site’s System Status? You can find it via W**ooCommerce > Status**. Select “Get system report” and then “Copy for support”. Once you’ve done that, you can paste it here? * For privacy reasons, feel free to paste the text on [https://gist.github.com/](https://gist.github.com/) and then copy the URL here. * I hope that helps! * Plugin Support [Christian](https://wordpress.org/support/users/christian1983/) * (@christian1983) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14513185) * Hey [@lmn40227](https://wordpress.org/support/users/lmn40227/) * You can also contact us at WooCommerce.com > My Account > Support. You may need to create an account before you can access that page. Please include a link to this forum thread, so that we can keep track of what’s already been done. We will be able to help you further there. * Best, Christian` * Plugin Support [Christian](https://wordpress.org/support/users/christian1983/) * (@christian1983) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14538500) * Hey there, * Since we haven’t heard back from the OP in a while, I’m going to mark this as resolved – if you have any further questions, you can start a new thread. * Best, Christian * Thread Starter [lmn40227](https://wordpress.org/support/users/lmn40227/) * (@lmn40227) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14558841) * the problem is wc_apa()->get_gateway()->update_option() function unable to use. * since this function is only update amazon_keys_setup_and_validated information. * I hide line 84 and 89 * wc_apa()->get_gateway()->update_option( ‘amazon_keys_setup_and_validated’, 1 ); * wc_apa()->get_gateway()->update_option( ‘amazon_keys_setup_and_validated’, 0 ); * after that, I’m able to update the amazon setting. * Plugin Support [Sol J. a11n](https://wordpress.org/support/users/solstudioim/) * (@solstudioim) * [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14564904) * That’s a very great workaround [@lmn40227](https://wordpress.org/support/users/lmn40227/) * I am happy that now the update works for you! Viewing 10 replies - 1 through 10 (of 10 total) The topic ‘Fatal error cause when input the API setting’ is closed to new replies. * ![](https://ps.w.org/woocommerce-gateway-amazon-payments-advanced/assets/icon- 256x256.png?rev=3193173) * [Amazon Pay for WooCommerce](https://wordpress.org/plugins/woocommerce-gateway-amazon-payments-advanced/) * [Support Threads](https://wordpress.org/support/plugin/woocommerce-gateway-amazon-payments-advanced/) * [Active Topics](https://wordpress.org/support/plugin/woocommerce-gateway-amazon-payments-advanced/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce-gateway-amazon-payments-advanced/unresolved/) * [Reviews](https://wordpress.org/support/plugin/woocommerce-gateway-amazon-payments-advanced/reviews/) * 10 replies * 3 participants * Last reply from: [Sol J. a11n](https://wordpress.org/support/users/solstudioim/) * Last activity: [4 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-cause-when-input-the-api-setting/#post-14564904) * Status: resolved