Can't Import/Export

Hello,

I'm quite new to Lightroom CC and im trying to import and export files, except whenever I do either of these operations a message/notification pops up saying I have insufficent disk space. Lightroom CC claims I have only 17.36GB free, however according to my system stroge it says I have 68GB free. I have tried simply restarting my computer, but that doesn't work. Am I missing a setting, or is there something wrong with my lightroom? 

Any help appricated 🙂 

Thanks!