need help for following project in hfss

can someone solve this error i need this urgently .thanks for your help

i am also sending project file

The antenna is outside the meshed domain. Either raise your antenna into the 'air'-box or lower the box. Also your ground plane is unassigned and should be assigned to some form of conductivity bound.

Port error - There is no dielectric object touching the port. Like Nuphi mentioned extend the air box in neg Z direction