Error message error message "the javafx based player requires Java 8"

A colleauge, in another country, just let us know that she is suddenly having trouble opening her eaf file. She is using Windows. She gets this error message when ELAN attempts to open her new (corrected) wave file.

Failing to load VLCJ Player.
Is VLC properly installed?
java.lang.UnsatisfiedLinkError: Unable to load library libvlc:
Das angegebene Modul wurde nicht gefunden
*… *
Native library (win32-x86-65/libvlc.dll) not found in resource path [then comes a LONG PATH to wave file]
The JavaSound media player does not support the media file: Stream of unsupported format

Do you think that we have a problem with the wave file? (She just edited it.) Or could it be a windows problem with java (neither of us understand how java works).

Thanks for your attention.

Denise (& Nick)