Unable to connect to WiFi


I’m using openSUSE 42.3. I am unable to authenticate my wifi password as the ‘Connect’ button seems to be inactivated. The screenshot is here: https://www.dropbox.com/s/mbpgizfzcmehbh5/Screenshot%20from%202018-05-27%2011-24-18.png?dl=0

Thanks for your suggestions.

I do not think that there is any hardware issue with the laptop since wifi used to get connected before.