How to record the number of times a prompt is displayed?

Hi there, I found a thread that I think will be helpful to you. In that, npetrov937 provides some JavaScript that will do what you are describing.
In your Survey Flow, create an Embedded Data Element at the top of the Flow and create an Embedded Data field called "errors_q_1". Set the value of this field to be "0".
Next, add the below JavaScript to the Onload section of the question for which you're trying to count the validation error message:
var question = $(this.questionId)
$(question).select('.ValidationError').each(function(error) {
  if (error.innerHTML != '') {
    var errors = parseInt(Qualtrics.SurveyEngine.getEmbeddedData("errors_q_1"))
    errors++;
    Qualtrics.SurveyEngine.setEmbeddedData("errors_q_1", errors);
  }
})
Repeat for each question where you're trying to count the validation error message, but update to "errors_q_2", "errors_q_3", etc. in both the Survey Flow and question JavaScript.