An early booking is usually rewarded with a lower price. Unfortunately this summer many flights were cancelled due to the coronavirus sweeping the globe.
In the case of a cancellation by the airline, or a red travel code for the destination of the flight, you have the right to reclaim your money. Many airlines have been offering vouchers in these cases. But you are not obliged to accept a voucher. You have the right to opt for another flight (the first flight with seats available), to rebook your trip or to get your money back.
Be wary of the date on which your trip got cancelled. If you were informed of the cancellation more than two weeks before departure, your right to receive a refund expires.
If you used a booking platform such as Skyscanner, this party is responsible for handling the cancellation. Reach out to them to negotiate a fitting solution.