Unable to book anything on website today. I get this

Unexpected Error
Unfortunately our booking system was unable to process your reservation request. Please try again.

If you have any questions about your reservation, please call 1-800-633-7313 in the United States and Canada. For international contact information, select the Hyatt Contact Numbers link.

I love staying at Hyatts and love the hotels, but the technical issues are really taking their toll. I just don't understand how a major hotel chain can have such a terrible website