Migration from old VReview

Hello,
My client has a website with an old free version of VReview. His website does not work anymore because of a VReview plugin too old (mysql error).
So I think to advise him to buy the latest version. But I have an important question: when installing the new version, will settings and user comments/ratings will be kept ?

Thank you in advance for your answer.

Hello,
There was never a free version of vReview. Please ask your client to get in touch with us with the Subscribed Account/Email.

My client told me that he never created an account at WDMTech.
The previous webmaster did not seem to have done things correctly…

So technically, is installing (and purchase of course !) the latest version of VReview would solve the problem ?

Installation of the latest version of vReview won't remove the existing settings and reviews.