I Can't login to my openmrs

My server and implementation was ok but this morning when i try to login i have this error.

No users works, i try with all users and can´t login

Windows server 2012 Openmrs 1.9

tomcat not generate a log for this today

Have you selected a Session Location (below the username and password fields)?

Of course, i reset the server and working, but is the second time that i have this problem

There was a bug in older versions of the reporting and idgen modules, where they ran scheduled tasks every few minutes, and these could end up locking the admin user because of too many failed attempts.

Do you have the option of upgrading (either the whole reference application, or just those two modules)?

But you mentioned that all users cannot log in; I have not seen that before. Is there some indication in the javascript console of your browser?