Error with SubmitGuess() Code

[Aquaman1161]

Error Being Shown

What I have tried

1. Resetting my computer.

2. Retyping the lines that have the error.

3. Looking up the error meaning. (still confused)

Code

Sorry I can’t figure out how to get my GitHub to work. here is a screen shot

[Manel]

length is a method, use

MyHiddenWord.length();