Hi and welcome to Arturia forums.
If you are a new Pro Tools user, then i think this might be about how to use third party plug-ins in Pro Tools. I don't use Pro Tools.
In generel be certain, that you can use third party plugins in a DAW, and that you have installed the right formats in the right bit versions on a location the DAW read and use.
Also be sure you are looking in the right place for the plugins in Pro Tools.
Perhaps you are lucky someone can help with Pro Tools here.
But if not, then i suggest you ask about this in a AVID forum or AVID support first. I actually assume AVID have some FQA help pages about this allready.
If it's not about Pro Tools, then please return with more informations about which plugins formats and versions you use, with info where you have them installed, and how your DAW is set to read and use this location.
Also please provide info about which OS you use.