Scheduling Visa Appointment - Error maximum number of times

I am trying to schedule visa appointment but changed the interview location 4-5 times. But now i am getting this message “You are approaching the maximum number of times you may view this page. Please complete your transaction at this time”

What is the meaning and how to fix it?

Thank you

This is normal system message. Try after sometime or next day. or in a different browser or IP address computer.