I logged in as a new user and clicked the "Open Guide" button present in the pop up that is displayed when a user logs into Xcalar for the first time. But for some reason I cant access it. I used to be able to access this page before.
The Open Guide button points to the Self-paced Xcalar training videos. We have recently migrated these videos to discourse and thats the reason you encountered this error. Here is the new link: https://discourse.xcalar.com/t/self-paced-training-beginner/368.
This will be fixed in Xcalar 1.3 . Sorry to have caused you any inconvenience.