I hit something on the comodo console and now it asks for a username and password and I never set one up. I need to clear some snapshots for space and cannot do it. How do I get around this problem?

Hi and welcome dickey6068,
I don’t personally use CTM, so I am stabbing in the dark.
Comodo Time Machine-User Settings

[b]Important Note:[/b] Comodo Time Machine is pre-configured with a default user 'Administrator' and is not specified with a password. When you select 'Enable access control' for the first time, you MUST specify a password for the Administrator account, otherwise you will not be able to access CTM on the next restart of the application. The specified password applies for all the operating systems with which your system is bootable.

Not sure if that helps.