spaceport.sys is a storage space driver, a inpage error means the driver requested access but the storage did not respond.
this could be caused by corrupted memory for the driver, or something prevented the driver from responding. Check the drives power, data cables. maybe put the data cables on a different SATA port or on a different controller. (many systems have two sata controllers)
if your system will boot, run a malwarebytes scan/virus scan.
if your drive is old, try running crystaldiskinfo.exe to read the smart error data from the drive.
if you suspect the drive is failing you might run a test utility like seatools. http://www.seagate.com/support/downloads/item/seatools-win-master/
to check your windows files for corruption run cmd.exe as an admin, then run
sfc.exe /scannow
if you have windows 8.x
you then run
dism.exe /online /cleanup-image /restorehealth
windows 8.x will also attempt to make low level repairs of certain types of errors, but you have to leave the system idle for hours to allow the repairs. (turn off sleep and leave the system overnight)