"Sorry, an error occurred or this page isn't available" in the navpage.Issue Often, post-upgrade, some customers experience this issue: When logging in, instead of being directed to the home page, they're seeing a white page with the message. ReleaseAny VersionCauseCacheResolutionTo resolve the issue clear the Browser's cache (including history, cookies) and instance cache . If issue persiste even after clearing Browser cache/Instance Cache, please contact Support