Authorization Error -- Contact your Security Administrator

PT 8.57.12 FSCM 9.2.35

We are currently experiencing random errors when going to one specific page in production. If we use the Navigator or the Favorites is when the error occurs. If we do a new Window and then do the Navigator or the Favorite it works fine. We have done portal syncs with the cache clearing at the app server and process scheduler. We have verified the web libraries on the security. Once a user does the new window then it works and then they don't have the problem for a few days then it starts again.

Not sure where to look at next.