I have a strang star on my taskbar on my phone

[AC Question]

Up by where my Sig strength,4g symbol alarm clock icon are there is now a star there and it wasn't there earlier today. I haven't downloaded anything. It's never been there

 

[the tall guy]

Hi, do you have "do not disturb" enabled? this is where all notifications are silenced for an agreed period of time. The star usually indicates that all but your starred contacts will be notified on your phone.