Thank you Gilly. I have no choice but driving it now because I have no other car. It did not rub the fender or any suspension part. It is just low.
Will driving damage the strut since there is no air. Is there spring inside the strut to hold the weight?
I thinking to check if the compressor is still good, if the relay still good. I suspected the compressor is bad because there is no air pumped (can not hear any pumping) into any strut.
How to check the compressor?
How to check the relay? and which one and where it is located.

I know it will cost fortune to have the dealer check and fix.