error_log showing repeated error messages

* @wordpress-plugin
* Plugin Name:  Salesmate Integration for Contact Form 7
* Plugin URI: http://www.rapidops.com/cf7-saleamate
* Description: Salesmate Integration for Contact Form 7 is a minimal plugin that creates a Salesamate Contacts, Company and Deal submitted for you're done.
* Version: 1.5
* Author: Salesmate io.
* Author URI: https://www.salesmate.io/

[21-Aug-2023 12:43:33 UTC] PHP Warning:  Undefined property: stdClass::$createdAt in .../public_html/wp-content/plugins/cf7-salesmate-integration/class-cf7-salesmate.php on line 386

[21-Aug-2023 13:07:24 UTC] PHP Warning:  Undefined array key "your-tags" in .../public_html/wp-content/plugins/cf7-salesmate-integration/class-cf7-salesmate.php on line 173