I have the same problem when trying to pay for a hire. I have cleared my cache and tried Safari and Firefox to no avail. Please let me know what I need to do to pay.
Please go to Settings > My Info and add your address and phone number. Once you have finished this you will be able to proceed, if you`re still receiving the same error after this let me know. Thank you.
Please fill in your address and phone number by going to Settings > My Info. If you`re still experiencing the same issue after this let me know and our team will investigate this further, thank you.