Help needed

Hi everyone. After being away from this site for a bit (ok, like 3 years) I am trying to get my geiger output connected back to radmon. I've logged into Radmon.org successfully, but when I try to update my data I get the following error:

Warning
Profile could not be saved: Username does not meet the criteria:
May contain upper-case letters
May contain lower-case letters
May contain numbers
Min length: 3
Max length: 25

I am trying to update address, data login password, address, etc. Is my username not longer valid because it contains a '_' or is it something else. Can this be fixed or should I just create a new username?

Thanks in advance for the assistance
-mark

I've sent a private message, but suggest you message mw0uzo, you're station doesn't show as active, so probably he needs to do something.