Go to admin.php and no login-no toolbar

I have 3 sites set up and all were working fine. Haven’t been in in couple of days and now one doesn’t bring up login screen, the other 2 work fine. Have deleted and reinstalled sitecake folder and admin.php but still no go.

Hi, can you send PM with site URL and sitecake pass for site that doesn’t work, so I could check it out?