I hope you can find your muse again and return to writing, it would be a shame to lose a talented author and I'm sure you still have a lot more to offer. Maybe there is something in your local or wider community that could spark your interest, an event or centre of general interest, a person or group of people. It could be something that you disagree with and see a viable alternative that could be adopted. The possibilities are endless but each author's muse is different as are their stories. Have patience with yourself and don't force things, take everything at your pace.
As for me, I write about aspects of homelessness, the people that are homeless and the people who try to help and support them. It is a subject that I am passionate about. There is no shortage of ideas and many possible ways to portray it, if anything I'm spoiled for possible storylines as there are so many. My problem is usually translating it from an idea in my head to the written word on paper. It's too easy to say write about what interests you, but that may not be the best idea for you. An author's stories are as individual as the authors themselves.
Good luck on your quest to regain your muse, I hope that you find what you want, need and are looking for.