my calnder/sound/notification icon on taskbar isnt working i tried the restarting file explorer and making local account and still the same can someon

[Windows Server]

my calnder/sound (slider)/notification icons on taskbar isnt working i tried the restarting file explorer and making multiple local accounts and still the same this happened to me few days ago and i have another problem that i had for a long time ago which is i cant find the brightness icon (slider)

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