Hello, I am processing a nonimmigrant visa with my...

Hello, I am processing a nonimmigrant visa with my family group and I did the whole process of the form until I canceled the bank and put the CGI reference to schedule the appointment and the system tells me that there are no appointments available that I must personally present at the embassy to process the appointment ... What about that? Is it a new system? What is done in that case? Thank you for the collaboration that can answer my questions ...