Title: Fatal error when inserting Amazon keys Last modified: March 14, 2023 --- # Fatal error when inserting Amazon keys * [Kyrian](https://wordpress.org/support/users/oloccina/) * (@oloccina) * [3 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-inserting-amazon-keys/) * Hi, when inserting the Amazon keys and saving I always receive a fatal error. This i the log that WordPress sends me via email. Thanks! * ```wp-block-code Un errore di E_ERROR è stato causato nella linea 16 del file root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/RejectedPromise.php. Messaggio di errore: Uncaught TypeError: method_exists(): Argument #1 ($object_or_class) must be of type object|string, array given in root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/RejectedPromise.php:16 Stack trace: 0 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/RejectedPromise.php(16): method_exists() 1 root/wp-content/plugins/mailster-amazonses/vendor/Aws/Handler/GuzzleV6/GuzzleHandler.php(41): Mailster\Aws3\GuzzleHttp\Promise\RejectedPromise->__construct() 2 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/Promise.php(164): Mailster\Aws3\Aws\Handler\GuzzleV6\GuzzleHandler::Mailster\Aws3\Aws\Handler\GuzzleV6{closure}() 3 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/Promise.php(125): Mailster\Aws3\GuzzleHttp\Promise\Promise::callHandler() 4 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/TaskQueue.php(44): Mailster\Aws3\GuzzleHttp\Promise\Promise::Mailster\Aws3\GuzzleHttp\Promise{closure}() 5 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Handler/CurlMultiHandler.php(80): Mailster\Aws3\GuzzleHttp\Promise\TaskQueue->run() 6 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Handler/CurlMultiHandler.php(101): Mailster\Aws3\GuzzleHttp\Handler\CurlMultiHandler->tick() 7 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/Promise.php(200): Mailster\Aws3\GuzzleHttp\Handler\CurlMultiHandler->execute() 8 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/Promise.php(183): Mailster\Aws3\GuzzleHttp\Promise\Promise->invokeWaitFn() 9 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/Promise.php(219): Mailster\Aws3\GuzzleHttp\Promise\Promise->waitIfPending() 10 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/Promise.php(185): Mailster\Aws3\GuzzleHttp\Promise\Promise->invokeWaitList() 11 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/Promise.php(219): Mailster\Aws3\GuzzleHttp\Promise\Promise->waitIfPending() 12 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/Promise.php(185): Mailster\Aws3\GuzzleHttp\Promise\Promise->invokeWaitList() 13 root/wp-content/plugins/mailster-amazonses/vendor/GuzzleHttp/Promise/Promise.php(51): Mailster\Aws3\GuzzleHttp\Promise\Promise->waitIfPending() 14 root/wp-content/plugins/mailster-amazonses/vendor/Aws/AwsClientTrait.php(43): Mailster\Aws3\GuzzleHttp\Promise\Promise->wait() 15 root/wp-content/plugins/mailster-amazonses/vendor/Aws/AwsClientTrait.php(56): Mailster\Aws3\Aws\AwsClient->execute() 16 root/wp-content/plugins/mailster-amazonses/classes/amazonses.class.php(192): Mailster\Aws3\Aws\AwsClient->__call() 17 root/wp-content/plugins/mailster-amazonses/classes/amazonses.class.php(206): MailsterAmazonSES->aws() 18 root/wp-content/plugins/mailster-amazonses/classes/amazonses.class.php(306): MailsterAmazonSES->getquota() 19 root/wp-includes/class-wp-hook.php(308): MailsterAmazonSES->verify_options() 20 root/wp-includes/plugin.php(205): WP_Hook->apply_filters() 21 root/wp-content/plugins/mailster/classes/settings.class.php(1271): apply_filters() 22 root/wp-includes/class-wp-hook.php(310): MailsterSettings->verify() 23 root/wp-includes/plugin.php(205): WP_Hook->apply_filters() 24 root/wp-includes/formatting.php(5000): apply_filters() 25 root/wp-includes/option.php(448): sanitize_option() 26 root/wp-admin/options.php(322): update_option() 27 {main} thrown ``` Viewing 4 replies - 1 through 4 (of 4 total) * Thread Starter [Kyrian](https://wordpress.org/support/users/oloccina/) * (@oloccina) * [3 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-inserting-amazon-keys/#post-16558822) * I am on PHP 8.1 – not sure if it’s relevant * Plugin Author [EverPress](https://wordpress.org/support/users/everpress/) * (@everpress) * [3 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-inserting-amazon-keys/#post-16559144) * Hi There! * Please update to the most recent version (2.12.0) and check if this solves the issue! * Thanks! * Thread Starter [Kyrian](https://wordpress.org/support/users/oloccina/) * (@oloccina) * [3 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-inserting-amazon-keys/#post-16561601) * Thanks for the quick reply! Amazon just denied my request to use their service, so I will not use the plugin unfortunately. * Plugin Author [EverPress](https://wordpress.org/support/users/everpress/) * (@everpress) * [3 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-inserting-amazon-keys/#post-16561880) * Hi! I’m sorry for that. You can try other providers as well: [https://mailster.co/addons/tags/mailsteresp/](https://mailster.co/addons/tags/mailsteresp/) * Hope that helps! Viewing 4 replies - 1 through 4 (of 4 total) The topic ‘Fatal error when inserting Amazon keys’ is closed to new replies. * ![](https://ps.w.org/mailster-amazonses/assets/icon-256x256.png?rev=3262220) * [Mailster AmazonSES Integration](https://wordpress.org/plugins/mailster-amazonses/) * [Support Threads](https://wordpress.org/support/plugin/mailster-amazonses/) * [Active Topics](https://wordpress.org/support/plugin/mailster-amazonses/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/mailster-amazonses/unresolved/) * [Reviews](https://wordpress.org/support/plugin/mailster-amazonses/reviews/) * 4 replies * 2 participants * Last reply from: [EverPress](https://wordpress.org/support/users/everpress/) * Last activity: [3 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-inserting-amazon-keys/#post-16561880) * Status: not resolved