Claimable or not is decided by the server clock, not by the date on this device: changing your device date does nothing.
Not claimed yet.
Optional. Skipping it costs you nothing and does not change your daily reward, season progress or rank.
No video right now. That is normal: supply comes and goes. This costs you nothing, your cap was not counted, and your daily reward is unaffected.
You can close this at any time. Closing early means no coins, and nothing else changes.