I bought Master Slider and entered its license key in my WordPress site. At that time I didn’t register domain name I had only IP address. Then after couple of days I configured that IP with a domain name. Now I get message to enter License key for my Master Slider. So when I try to enter the same key I get message that this key is already registered.
I am stuck I can’t use my own key(only for one website). Please help me to fix this problem?