Thin file or user error?

I’m 18 and just started building credit about a month ago with chime this is obviously my first and only card right now but I tried making a credit Karma and Experian account to check my scores. I understand I may not have scores right now but I can’t even get past the login screen without credit karma telling me to check my information. Can I just not log in/create a account because I have very little credit right now or am I somehow putting in wrong information?