Doesn't show validations as a Required Field

Hi suppport,

I am using contactform 7 ratings plugin to get reviews from users. But it is not showing *required validations on submitting the form without giving any ratings..So we are getting ratings field as empty. I want it to be a compulsory field.

Any support will be appreciated.

Thanks in Advance..

https://ww.wp.xz.cn/plugins/contact-form-7-star-rating/