Page not functioning in Form IO

Hi, in my form IO form I have multiple pages and each page contains many questions and consist of conditional questions using JavaScript. Everything was fine but suddenly the conditional questions were stopped populating during the “USE” view. My practice is to build the question and to see them in “USE” mode to ensure they are working as per the condition assigned. Recently I have used a json script on a particular question to assign some advance condition and I have done that by clicking the edit json button appears on the right hand corner of the question. I am not sure whether this is causing the issue or not but now only independent questions are appearing and no conditional questions are populated and this is happening across all pages in that form. If anyone have any idea as to how a solution can be found or any suggestion to recover from the situation, would be highly appreciated.