What I am doing wrong? Help, Ruby

Question

Help me, please
https://code.sololearn.com/cwTinX05qmXc/?ref=app

Answer 1

check the structures of the definitions?

Answer 2

can be more specific?

Answer 3

blya, i'm doodle

Answer 4

look in code, please

Answer 5

End is missing on line 43, tha'ts the only thing I found, after that I get No output, but no more syntax error