I get 404 error when doing "email conformation"

Question

Hello. On my website, I have an admin account (mine) Today I created a second account to test out the process and when I try to confirm my email, I get a 404 error. How do I fix this??

Comments

I found out the problem. On the confirmation email, the link has "mydomain.c/confirm" instead of "mydomain.com/confirm"

does anyone know how to fix this problem, or what file I have to change to make this work? thanks