i have checked all your files in blender i would recommend to change software version 2.8beta,because its too to better than other..your mcadamasv1 blend file will be shown and render in 2.8beta ,i have donerecent rendering two files also..you could not rendering becaise the file was save in higher version,thats why you could not made rendering..please use blender 2.8beta,then you can easily done all works with rendering and all.i have done recent all,because i have faced same problem your before for old software..