non typical problem with login

Hello people,

you are my last hope so I really ask you for help. I have my site installed on Godaddy with WordPress 4.4.2. Until yesterday, I logged in normally.
Since this morning, I just got repeteadly log in screen. I’m sure about my password but anyway, I did reset my password, but the result is same.
As soon as I click on LOG IN I just got log in screen again, even after reseting password. I did not make any changes on configuration files so I don’t know what to do.
I try to disable plugins but the result is same.

Can you, please, give me somoe advice, I’m desperate. I called godaddy support but they told me that this is WP issue and that they can’t help me.

Thanks in advance…
Milan