Speed Dial 2 stopped working

I have been using speed dial 2 from the moment I got Brave Dev version and I never had an issue. Suddenly it has stoped working. Anyone might know why? I tried to remove the extension and re-install it. When I did that it works until you try to import your settings or you try to add a new tab. I hope someone can help as it is a great tool for me and saves me a lot of time. It would be great if Brave could add is as a standard feature!