File Error, Missing Application: At_Reboids

A client gave me several Autocad files of some industrial equipment and buildings to be brought into 3ds Max and rendered.

Upon opening the file in Autocad 2015 (or 2012) I get 7 errors effecting over 4000 objects causing them not to be visible, Missing Application: At_Reboids 

After some googling I tried installing the AutoPlant object enabler and still no luck. 

Any ideas or solutions would be greatly appreciated, I just need to be able to open the files export them to FBX.

Thanks,

-David

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