The Common Name (Domain Name) must contain ONE

Dear all,

I am trying to install a wild card SSL for my domain, however it seems that i am unable to to pass the first step when comodo platform asks to import the CSR key.

Once i have generated the key on my server and trying to paste the CSR on comodo platform, i am getting the following error from comodo which prevents me to continue to the next step:

The Common Name (Domain Name) must contain ONE *

Could anyone please clarify what does it mean and how to solve this?

Thanks in advance,