Not able to register as CA on income tax portal

I am a chartered accountant enrolled as a member of ICAI w.e.f. 01-04-2021. I tried to register as a chartered accountant on the new efiling portal but the portal displays an error message that my date of enrollment is invalid. The same date is evidenced by my ICAI member card. I mailed this incident to the efilingwebmanager but got no reply from them. Please suggest me what can be done in this situation.