Kindly do following prechecks
1).Please check your course mode in solar with Center person if it is @ALC mode then you are not able to do Learning at Homedemy mode in this case Learner cant contact to his/her respective center Person
2.) if you can see your course mode is ''@Online" OR "'@Home'' then copy the username and pw from solar and do login
your issue will get resolved.
IF issue still persists then ask center person to generate support ticket