Procedure with File Manager

Explanation:

I have a dialog button activating a procedure. I have a .txt file which has lines of text. I am using the fir each line of block in File Manager (Nerdy's Edition). Whenever I press the dialog button in game, it does not say anything in chat. 

Screenshots:

I have a google website with the images. Please click on the following link to view them:

https://sites.google.com/view/abellys-images-for-mcreator/file-manager-text-file-reading-procedure-error

If that doesn't work, Click Here

With the screenshots, it should make more sense. I have been trying for many hours so... I might be dumb. 

Thank you,

ABelly99