Yes, my paypal was verified. I just get this problem when I make an offer that exceeded the amount in my account. It's a shame I didn't notice the balance in my account. Please fix it. Thank you very much.
Please know that we will not be able to fix the issue with your Paypal account from our end. However, you may get in touch with Paypal's Customer Support Team, so that they can assist you.
You may also need to add an alternative payment method to your PayPal wallet in order to add your PayPal account as a billing method on Upwork.