Yes, as per the log info it should be setup properly ... but I don't know where your /data folder is .. all conte nt should be in there.
How did you generate your docker ... there must be the volume definition for /data .... on command line it is done with the -v parameter
docker run
-dit --restart unless-stopped
*-v /YOUR_DATA_FOLDER /data *
--network host
--name nodered nodered/node-red
The path you are showing in you screenshots are the Node-Red path and location but does not show where the /data path or volume is ... there must be a section in your docker config where you can configure the volumes .. sorry your UI is not English/German so I cannot read the details
