Ubuntu system prb

i am new to ubuntu eventhough i installed few times up to now the system my self.
This last time strange thing happened. I don’t have the “settings” panel at all.
I am referring to the part where we can fin all the settings such as sound, network, … and when i make a search for “sound” it doesnt find anything too.
I am not talking about ubuntu service center and dont know the exact name, i suppose it is “settings” as there were last time i have the full system i always had this part.
right now i have to find the place where i can manage
the microphone.
Could you clarify this to me? Any thoughts?

KInd regards

I’ve moved this to the https://community.ubuntu.com/c/support-help-requests category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the https://community.ubuntu.com/t/finding-help/712 page.