I had the same problem. It looks like it happens when gwibber can't connect to the keyring service. To fix this, I started the keyring service manually by typing 'gnome-keyring-daemon' in the terminal.
I had the same problem. It looks like it happens when gwibber can't connect to the keyring service. To fix this, I started the keyring service manually by typing 'gnome- keyring- daemon' in the terminal.