Namespace not found when starting OPC UA Extractor 2.39.0 with KepServerEx 6.10

KepServerEx 6.10 OPC UA Configuration Manager : 

KepServerEx 6.10 OPC UA Node ID :

config.yml :

source:
    endpoint-url: opc.tcp://127.0.0.1:49320      #This is your OPC UA server url
    auto-accept: true
    queue-length: 10
    username: 
    password: 
    browse-chunk: 1000
    attributes-chunk: 1000
    x509-certificate:
        
    browse-throttling:
        max-node-parallelism: 10

   
extraction:
    id-prefix: 
    # Delay in ms between each push of data points to targets
    # Alternatively, use N[timeunit] where timeunit is w, d, h, m, s or ms.
    data-push-delay: 5000
    
    # Source node in the OPC-UA server. Leave empty to use the top level Objects node.
    # If root-nodes is set, this is added to the list of root nodes.
    root-node:
        # Full name of the namespace of the root node.
        namespace-uri: "Simulation"
        # Id of the root node, on the form "i=123" or "s=stringid" etc.
        node-id: "s=Simulation"
        
    # List of proto-node-ids similar to root-node.
    # The extractor will start exploring from these.
    # Specifying nodes connected with hierarchical references can result in some strange behavior:
    # generally, the node deeper in the hierarchy will be detached from its parent and excluded from the hierarchy of the other node.
    root-nodes:
        #namespace-uri: "Simulation"
        #node-id: "s=Test.Demo.Random1"
        #node-id: "g=ca6b914c-97be-04bc-6c4d-30057ff19b7d"
        
    # Map OPC-UA namespaces to prefixes in CDF. If not mapped, the full namespace URI is used.
    # Saves space compared to using the full URL. Using the ns index is not safe as the order can change on the server.
    # For example:
    # namespace-map:
    #   "urn:cognite:net:server": cns
    #   "urn:freeopcua:python:server": fps
    #   "http://examples.freeopcua.github.io": efg
    namespace-map:
        "Simulation": kepserverex-sp      # Add your unique prefix.
    data-types:        
        # Set to true to allow fetching string variables. This means that all variables with non-numeric type is converted to string in some way.
        allow-string-variables: true        
        auto-identify-types: true       
       
        # True to treat null nodeIds as numeric instead of string
        #null-as-numeric: true      
        
    map-variable-children: true

history:
    throttling:
        max-node-parallelism: 100
state-storage:
    interval: 10

logger:
    console: 
        level: debug
    file:
        level: debug
        # Path for logging output. If not present, logging to file is disabled.
        path: C:\Cognite\OpcUaExtractor\logs\log.txt
        # Maximum number of logs files that are kept in the log folder.
        retention-limit: 31
        # Rolling interval for log files. Either "day" or "hour".
        rolling-interval: "day"
    # Optionally capture OPC-UA trace. One of verbose, debug, information, warning, error fatal.
    ua-trace-level:
    # Trace data sent to and from the OPC-UA server.
    # WARNING: This produces an enormous amount of logs. Only use this when running against a small
    # number of nodes, producing a limited number of datapoints, and make sure it is not turned on in production.
    ua-session-tracing: false