An account is suspended when the last payment of your plan couldn't be covered or processed due to an issue with your payment method.
In order to fix this, you have the following options:
Choose pay with your card to pay your current due payment with the same card you already have associated with the account.
Choose pay with another card for current due payment. This option will request your new payment information and will attempt making a payment immediately after making your updates.
Choose change your plan to select a different plan. You will need to use a valid payment method to pay for the new plan.