Game problem

In the (Hero Records) competition, I was able to complete all the stages, but I reached the last competition under the (Heroes Experience) section. There is a competition called (Not That Easy). When you open it, it says (You are released after failing to fight the first creature). I did not understand the first creature and I did not know it, and I was not able to pass this stage for two months. How can I solve this issue and pass this stage?