Hello Zeusius and welcome to the community.
The plug-ins referenced in that KB are optional and require licenses, so the error is normal if you don't have the licenses for those installed on your iLok. This isn't the same with Elastic Audio.
Can you please do a search for the following files?
- Elastic Audio.dpm.rsr
- iZotope_Radius_Win32.dll
If you find them please reply with the full path name (likely starts with "C:\Program Files...") for these files.
Thank you.