1. Missing lines "PM_CANCELLED" and "PF_Field_mapping" in language files
2. Since the component is used in the integration mode with Community builder, it drew the removal for one important moment. If you do not enter a value for any of the required fields and click Continue payment, you will receive an error and disappear the values of all fields that have integration with the component. In this case, only logging out of the account helps and then re-entering. This is an important mistake.
3. Also there is a problem with the presence of incorrect simbols if the server is running on php7? But this problem is solved simply by removing unnecessary symbols
All the latest updates have been installed, the check was performed on several browsers (Yandex, Chrome, Firefox, Edge) the error is also present.
Thank you!
With regards, Renats