There are no known issues with adding bank accounts to PayPal accounts at the moment.
There could be many reasons why you cannot add a bank account, for example if it is already registered to another PayPal account or if your bank has been disabled in the system.
Customer service can look into the specifics of your account and help with this.
@3245- this is a community forum designed for members to help each other out not a customer service platform so if you require immediate assistance you need to call or email PayPal's customer service team by clicking on 'Contact Us' at the bottom of your account.
Let us know how you both get on!