Problem with the lasagna cooking exercise in Java

Hello Exercism community. Could you help me with this exercise, according to me, the others are already left, but the last one is not left, I don’t know how to do it, I have no idea. Attached is a screenshot.

It would be helpful if you could post the code using a codeblock rather than screenshots - it’s much easier to read (copy/paste it and wrap it in three backticks ``` (next to z on my keyboard))

The issue is that you’re trying to call the preperationTimeInMinutes() function as if it’s defined on the number. But it’s actually defined on your class. Instead you want to do something like preperationTimeInMinutes(numDeCapas), where you pass the value into the function. (maybe this.preperationTimeInMinutes(numDeCapas) - I can’t remember the syntax in Java).