If an activity opens to a blank or white screen, only a toolbar, a “404”, or a dataset that will not show, work through these checks. Most come down to who is signed in and how the activity was opened.

Checks for students

1. Sign in, then open the activity from the class. Students can open an activity if it was assigned to a class they are in. Opening a link from outside the class, or from an archived class, can fail.
2. Check the class is current. Archived or inactive classes do not give access.
3. For an individual assignment, make sure the student was one of those assigned.
4. Refresh the page, or sign out and in again.
5. Try Chrome, and make sure tuvalabs.com is allowed by your school network (see System requirements).
6. Open the link in its own browser tab instead of inside another website or LMS page.

Checks for the teacher who made it

1. Publish the activity. Unpublished activities can only be opened by their owner. See Create an activity for a dataset.
2. Check the dataset is available. An archived dataset will not open its activities.
3. Check subscriptions. Premium datasets and activities need a Premium account for whoever opens them.
4. For your own uploaded dataset, check the privacy setting is “Anyone with a link” if others need to see it. See Share a dataset with your class.
5. Import and refresh from Google Drive or OneDrive need pop-ups and cookies allowed: Unblock pop-ups and Allow cookies for Google Drive import.

If it is still blank

Send us a ticket with:

• the link to the activity or dataset
• whether it is a student or a teacher account, and the class
• the browser and device
• a screenshot of what you see
• whether you opened it from a class, an LMS (Google Classroom, Schoology, Clever or ClassLink) or a direct link
• whether the dataset’s CSV download works