This error indicates that the role doesn't have the correct custom permissions assigned. Have an Administrator use page designer and open the page properties. The page expressions could have custom views. To find the security folder you need follow the steps below:

1) Go into the Administration functional area.
2) Click Application
3) Click Features
4) Open the Data form search
5) Search for the custom expression(s)
6) Notice the security folder containing the required feature permission.