Hi ritagoncalves,
We understand that you are facing an issue with the WooCommerce plugin. However, please note that this particular issue is related to the plugin itself and not our product. We recommend waiting for an update from the plugin's author, as they are responsible for resolving such issues.
It's important to mention that the problem you're experiencing is not influenced by the theme or your website.
We would like to clarify that the message you are receiving is more of a notice rather than a warning.
Note: You can disable the debug from the wp-config.php file