After that there are 2 tabs i.e. Last Week & Next Week.
When you press these tab, it shows …
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Can I recommend you try updating to the latest version, v9.1, which has a lot of bug fixes. Or, if you can, you can wait for v10.0 to come out on June 26th. If you want a notification, then sign up to our mailing list at https://gibbonedu.org/support/.