Keep getting same error...

[Frenic03]

Gathermate2_Data_Carbonite addon is not loaded!

Each time I try to import herbalism/mining, despite downloading the GM2 Carbonite edition first from Curse, then deleted, then re-downloaded from here then unzipping and adding it to the interface-addons, it still keeps giving me this error message for some reason.

Am I not doing something right, or can anyone suggest something?