I have a site with PW running just fine for some time now, but today I can't login. I put my credentials and there's no error, just the login form reloaded. I used other user's logins and the same happens.
Where should I start looking to fix this? I have access to the server (obviously) but not total control over it. Maybe there's something in the server that triggered this.
I've read some topics about this and there's no sessions log files to erase (as some suggested). My concern is