China Eastern just cancelled my flight

Hi everyone,

So I just got an email from China Eastern saying that they cancelled my flight from OKJ to Shnaghai "due to the reason of airlines". I was going to my home coountry through Shanghai. Does this mean that the flight from Shanghai to my country as well as the return flight (my country-shanghai-OKJ) is also cancelled?

What sould I do? The other airlines prices for the same period are sooo expensive??