Couldn`t add SSH keys

Dear Sir/Madam,

I have a trouble with adding SSH keys in my bitbucket account. I click on
the button "Add key", pste my key and type title of this key then click on
"Add" and nothing happens. Dialog of adding key is still here but "Add"
button displayed as a disabled button. Try to refresh SSH keys page and see
that no keys were added. How to solve this problem?

Viktor