Need help with sbc Brakes

When I started the car up after installing the new equipment I got a warning that ESP was not on and to consult user manual. Then Immediately after i get the Red dash with message "STOP Brakes Defective, Visit workshop".
The only thing that i did wrong was take apart the driver side caliper and the fluid that was in there came out. I'm assuming this is what is causing the error... When i took it for a quick drive around my block all of the other rotors showed that the calipers had pressed against them except for the front drivers side.
I checked the brake fluid reservoir and it is full, so how do i get the fluid back into the driver side caliper? I also hear the sbc system when i first press the brake but there is a slight hissing sound after it makes its initial pump... Could that be air in the line?
Any suggestions would be greatly appreciated!







