My language setting is set to German, so it's a bit difficult.
Anyway the entry of C:\Users\cas\Documents shows quite lot but no "Visitenkarten".
So I did Ctrl-P (tools--options?) chose Database (? =Datenbank) and clicked on recreate database.
But still "Visitenkarten" were not found
I even set again the default settings and the more characters I enter in the search line the less files and folders are shown:
"Visite" shows 5 files,
"Visiten" shows nothing.
I have Win 7, 64 and the files are created by LibreOffice 18.104.22.168 (x64).
I downloaded "Everything-22.214.171.1248.x64-Setup.exe" but a click on it opens just this window
(.. is not a legitimate Win32 application):
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