This string is not formatted correctly for translation

Hello.

This string is not formatted correctly for translation:

https://plugins.trac.wordpress.org/browser/woo-thank-you-page-customizer/trunk/admin/admin.php#L53

Furthermore, in the following file the strings use the esc_html() function, do not have the text domain and are not translated:

https://plugins.trac.wordpress.org/browser/woo-thank-you-page-customizer/trunk/includes/support.php

Thanks.