add 404 error message for item in impactstory.js
add 404 error message for item in impactstory.js

total-impact/total-impact-webapp,total-impact/total-impact-webapp,Impactstory/total-impact-webapp,total-impact/total-impact-webapp,Impactstory/total-impact-webapp,Impactstory/total-impact-webapp,Impactstory/total-impact-webapp,total-impact/total-impact-webapp