This error message is likely occurring because you've run out of space allotted to you by the administrator of your system. It looks like you're using a university computer system; I would speak with your school's system administrator to figure out how to get MATLAB onto this computer.
You can find additional information about exceeding disk quotas here:
https://stackoverflow.com/questions/29458506/disk-quota-exceeded-but-whats-my-quota
