yes, when you renewed your subscription, you probably unticked the thing to attribute the licence for your account. Because technically, you could buy licences for collaborators, making you the person in charge and them the person who use.
so you need to go to your account and assign the seat to yourself.
https://ecom-prd.trimblepaas.com/account/organization
Choose Members from the left of the page, and in the entry for you in the list, click on the dots to set what products you have access to. Once you give yourself permission to use the Pro subscription, you should then be able to sign in within SketchUp to see that your subscription is active.