Error while accessing FIORI Apps

Hi

Aside from my problem here: . I'm also having problems with my other FIORI applications. I'm trying to access My Timesheets and My Travel Request apps. The result is a blankpage with just the title of of app on top.

On firebug, the error shows.

Failed to load resource: the server responded with a status of 403 (Forbidden) http://xxxxxxxxxxxx/sap/public/bc/ui2/services/sap/ui2/srvc/error.js

Uncaught Error: failed to load 'sap.ui2.srvc.error' from /sap/public/bc/ui2/services/sap/ui2/srvc/error.js: 403 - Forbidden

I made some roles and put my userid on it. Although I don't know if what I did was correct.

FIORI_TIMERECORDING_EMPL

FIORI_TRAVEL_REQUEST_EMPL