I am trying to give smart developer badge quiz as it is must for gsoc proposal submission. But I am getting this error even with correct username(have tried with pratibha_y@id.openmrs.org too). I have already raised a request on help desk but got no response.
A probable guess why it is not identifying is because of special character in username, as it is working fine with any random username without special character.
If anyone know solution for this please do share or any way to change username.