MSl1
4
Found this topic:
run: sudo apt install libxcb-cursor0
start: sudo ./VictronConnect-x86_64-v6.14.AppImage
… the App starts 
Addendum:
$wine64 ./VictronConnectInstaller_v5.107.exe
runs also 
Version 6 (VictronConnectInstaller_v6.14.exe) fails
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