fvdw on raspi4

I did the first test with thisconfiguration. It gives me a failure when trying to install an externel USBHDD:
in /etc/.setup.fs/setupjob.log it says:
Can you workout the german message?
Obviously it does not find the HDD although it shows up as inititable in the dialogue before.
in /etc/.setup.fs/setupjob.log it says:
<b>Erstellung reset.sh ist jetzt in Arbeit</b><br>
Vorgefundene Festplatte: sda(575842314134384C4E323534-0:0_WD_Elements_25A2) <br>
Lösche die Partitionstabelle auf sda: OK<br>
Erstelle eine neue Partitionstabelle ms-dos für sda: <br>
=><span style="color:red;"><b>Fehler (Festplatte nicht gefunden)</b></span><br>
<br><b>Erstellung reset.sh wird neu gestartet</b><br>
<span style="color:red;"><b>Festplatte nicht gefunden (sda)</b></span><br>
Can you workout the german message?
Obviously it does not find the HDD although it shows up as inititable in the dialogue before.