Pliss Help!

heloowww.. pliss help.. i open my windows this morning and i cannot change my antivirus protection level. why?

i've try to change at the toolbar but its amazingly only "default" words that available there.. the custom level and difault level buttons is not available to click.. and i lost my ability to choose the level.. i donno why

and my bitdefender is disabled.

pliss help ya..