Hello I have problem with all task in section 9. For Example If I click Run in task 1 on lesson 2, the console will show me this problem: "pl/codegym/task/task09/task0901/Solution.java:1: error: illegal character: '\ufeff'  package com.codegym.task.task09.task0901; ^ Ok, I guess I have to delete the first character ('\ ufeff'). Done. And now i have this error: Caused by: java.lang.ClassNotFoundException: pl.codegym.task.task09.task0901.Solution at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 3 more "