Datalogger 2.3.0 with no configuration file

Hi there,
I am trying to use the Datalogger app (WAGO Visualization Datalogger 2.3.0),
I have a PFC300 PLC and I installed the IPK file through the WBM (install-wago-sysapp-dataplotter_2.3.0_arm64).
In codesys, I have used only this: WagoAppDatalogger.FbDatalogger and I can see that I have the CSV files on the SD card with the DataPlotter format (and the file is updated every 20 minutes).
The CSV files are on path: /media/docker/CSV_Files (and sd is mounted on the correct directory) with name Logfile_dp_2025_07.csv
On path /home/codesys_root/PlcLogic/config/datalogger-visu
I have 2 JSON files, and I made some edits to the one with the name datalogger-visu.json
But something I am missing, and when I visit the http://PFC300-IP/datalogger-visu/
I receive the error: ‘No configuration file,’ and I can’t see the values.
I am missing a step, because when I use the demo program on another PLC, the datalogger app works as expected.
Is there somebody who can help?
Thank you