wp-admin, wp-login.php stopped working… can't log in.

Hi there,

I’m having problems logging in to my admin panel.

wp-admin says that the page doesn’t exist and wp-login.php loads redirect loop error in all browsers.

I googled a bit and I looked at the data base and it seems fine.

Do you have any other suggestions? (I believe I used WP v3.7.1)

My website url:
ifixyourpc.co

Thanks in advance!