If you mean, you have enabled the User Explanation from the admin dashboard, and you can’t write anything in the input, then, please note, that the plugin is designed like that. The admin can’t write anything for this input. By enabling this functionality, you let the survey takers write explanations while passing the survey.
See the screenshot below:
Once you go to the front end, you can see a text area under the question, where the user can provide an explanation and submit the survey.
