Payment error afther trial period

Hello! When I create a subscription with a trial period, the payment data is not saved (even if I check the option to save card) and therefore the subscription is not renewed.

According to the plugin documentation when creating a subscription free trial, the user will have shared the payment details; therefore, you will be automatically enrolled in the plan unless you cancel within a set time.

What do I have to do so that after finishing the trial the payment is made automatically?

https://www.innbalans.com/producto/subscription-monthly/