If loading database is present and do not load, please go to folder C:\Users\YOURUSER\AppData\Roaming\Microsoft\FSX (please note that the AppData folder is a hidden folder, so you'll need to change the visibility to see it) inside this folder there should be a file called dll.xml, if you open this file using a text editor (like notepad) you'll se the code, please check if the lines:
<Launch.Addon>
<Name>Carenavigraph</Name>
<Disabled>False</Disabled>
<Path>.\Carenavigraph.dll</Path>
</Launch.Addon>
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If those lines are not present please copy form here and paste in the file just before </SimBase.Document> line. (if you don't know or sure on how to do this you may also send us the file and I'll repair it and send back to you.).