Issue Importing Media Files, "Media Import failed, see Diagnostics Log for details"

I'm having issues importing media files into my showfile to run some pixel maps. I tried using "import all pixel map media" and it gave me that message. When I tried following some tutorials, they gave the option to exit to use the file manager to import media as well (ECU>settings>maintenance>File manager), but when I go to the maintenance tab, there no file manager option. I'm running 2.8.3 build 11 on a macbook pro. Any ideas where I can start digging to solve this?