During website development, developers enable a feature call WP_DEBUG mode, this allows developers to see certain warnings, notices or errors.
If debug mode is set to true for define and display these notices will be available to view by your website customers.
If you disable ( set to false ) the WP_DEBUG mode these notices will not be available to view by your website customers.
More information can be found here:
If you find any warnings, notices or errors can you please provide the details to ExtensionWorks via Support.