SYMPTOM:
When a Strategy Web user navigates to the subscriptions page, they receive the following error:

You do not have sufficient permission to access the resource you requested.
The user may also see the following error in the Strategy Web errors log:
(The user does not have Read access to this User object (ID is 'C1E141E611D603A2100086B3A5E8F8A4').)
CAUSE:
This issue occurs in Strategy 9.x, when the user does not have Read privileges to their own user object.
WORKAROUND:
Grant the user Read permissions to their own user object through Strategy Desktop.