Animation is not playing eventhough state shows it

I have created an animation for a child of my main object. This animation should start when clicked. In the animator i have a waiting state where nothing happens and the state which should play the animation. But when i click on the child in the game, the animator switches states and shows that the animation is playing, but it isnt. I dont know why. I have the animation controller on my object and also on my raycaster (which controls the click). When i set my animation as the default state it is playing, but i need a parameter first. So what is the problem?

I need help soon, thank you!