Annoying clicking sound from the bottom bracket
Is it happening only when you pedal backwards or forwards too?

I note you have a small spoke guard on the back wheel.  Take a close look at that.  It might be cracked and when you back pedal the freewheel teeth might be catching on it.  It seems way to loud and plastic like to be a crank issue but then again I'm not there.  All my crank issues have had a much more solid clunk sound and were not nearly as loud.