User-reported unhelpful error message

[codeworld-feedback]

Program: https://code.world/haskell#PiIMlFBWzEvxf9rdaJ2CELg

Message:

program.hs:(3,8)-(4,23): error:
    Unexpected do block in function application:
        do print (circleArea 12)
    You could write it with parentheses
    Or perhaps you meant to enable BlockArguments?