Avrdude: ser_open()

hi everyone im getting this error and i have no idea what it means:

avrdude: ser_open(): can't open device "\.\COM4": Mutual Authentication failed. The server's password is out of date at the domain controller.

ive looked every where and i cant find a solution, thanks for your help.

I'm ussing an Arduino BT.

avrdude: ser_open(): can't open device "\.\COM4"

Is that Comport being used or open somewhere else?