If you see a screen like this you are currently on the Algor Education Free plan, which allows you to view and edit for free only the last 3 maps you created.

Each time you create a new map, either automatically or manually, the third-to-last map you created will be locked.

You can unlock all your maps by subscribing to Algor Education.

To purchase a Basic or Pro subscription click here and choose the plan that suits you best.

When your subscription plan expires, the maps and documents you have created will be locked for both viewing and editing. You will need to be on the subscription plan to unlock them.