Can't change

We were unable to complete the resubscription because we could not charge the customer for the resubscription - Code:functions/failed-precondition

(Debug information, this helps us helping you, you can remove this if you don’t want to share this data, it should not contain any personal or sensitive information)
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
Cookies Enabled: true
Screen: 1280 x 800 px - 1dppx

This typically happens when your payment details are outdated. Before changing the subscription go to:

And click “update payment method” and enter the payment method of your choice. Then the update should work as expected.