I can’t navigate through the calendar to schedule an interview appointment

Hello All, I am writing from Cameroon, visa type is CR1. I have created an avits profile, done all what is needed to be done and now it's time to pick an interview date but I can't navigate futher dates. E.g. since today is the 9th I will only see 10th as available date.for days now I have been mornitoring the system to see if it will change but nothing changes. Please has anyone encounter such and how was it solved?