cannot change main domain

[exspere]

I am unable to change my main domain as I get a message stating:
A system error occurred while processing this action.
Error Code: C085843B

Could someone help me with his issue?
Thanks

 

[vishal]

What is the domain name you are trying to add ?

 

[exspere]

exspere.com

 

[Zubair]

Please try again now. It should work now.