Click the profile icon on the top right and select your workspace.

This will take you to the Workspace Members page, where you can click the "Settings" button on the top right to access the workspace profile.

From the Workspace tab, you can rename your workspace and change the workspace avatar. To change the avatar, hover over the profile icon and click the "Update" button.

On the same tab, under the Workspace settings section, you can manage who can add a member with a paid role or change a member's role from free to paid.

Click the "Billing" tab to access your workspace subscription information, like the number of paid seats you have, the credit balance on your account, and the next renewal date.

You can also update the billing email, invoice details, and credit card information while browsing your previous invoices.

This issue might be related to your workspace being frozen due to failed payments. On the annual plans, if there is a failed payment due to extra seats added within the billing cycle, the subscription is automatically frozen after five failed attempts within 14 days.

You see a banner that says, "Due to a failed payment, your workspace has been suspended. Please update the payment information to re-activate the workspace."

In order to activate your workspace, you need to complete the payment. You can update your credit card information from your workspace's Billing page.