Interleaved staircase terminates after first trial

I am very new to Psychopy ( and extreme beginner in Python). I would appreciate any help. My problem is likely to be very simple, but I can’t figure out what exactly to fix and how.

OS (e.g. Win10): Win10
PsychoPy version (e.g. 1.84.x): v2020.2.8
Standard Standalone? (y/n) If not then what?:
What are you trying to achieve?: I need to implement interleaved staircase, similar to delay discountin task. I want to change delays (corresponding to different staircases) and participants choose between two drink options, one of which will have increasing/decreasing monetary incentive associated with it. i.e. " A or B +0.50" → “A or B+1.50” etc.

What did you try to make it work?: google, forums, checking code elements

What specifically went wrong when you tried that?: The experiment will not continue past the first trial.
I get the following error:

I suspect there is a problemwith some of the code elements (screenshot below), maybe specifying the correct response?

This is the excel file:

code element specifying correct answer and side where options appear :

I have now edited the above code element,but still not working:/