What should I do, to get this run on my Mac?
Use their VST3 versions.
where can I get it?
most probably you already have them!
if not, then they are on the same installation as the VST2's
just to be sure, in Maschine —> Preferences —> Plugins choose those options:
…unless of course if you still have many VST2's from plugins that do not have a VST3 version.
i see now that you are on Mac… in that case you have to use the Rosetta mode, however i'm a Windows user with only a very basic Mac knowledge… @Kymeia will assist you better. :-)
What version of the Waves software are you running?