You can access them through the Effects panel (search for "Film Impact") or via the dedicated Film Impact Dashboard located under Window > Extensions . Official Free Options (If you don't use Premiere Pro 25.5+)
If you have an active Adobe Creative Cloud subscription and are using the latest version of Premiere Pro, these 90+ transitions and effects are already built-in and free to use. filmimpact-premium-video-transitions-v4-7-3-x64-pre-cracked
The request "filmimpact-premium-video-transitions-v4-7-3-x64-pre-cracked" looks like a search query for a pirated or "cracked" version of the Film Impact video transition plugins. You can access them through the Effects panel