Bonjour,
Gimp 2.10.36 Win 64
There is a DLL problem on the version of the site https://gmic.eu/files/windows/
Here is an alternative solution that works with Gimp-2.10.36 Win 64
You can download the archive, extract and declare the directory \gmic-3.3.1_gimp-2.10.3x-Win64_QT6\gmic_gimp_qt as a gimp plug-ins directory.
:o)