Using Windows neo4jdesktop1.6.1 version, downloading neosemantics-5.20.0.jar does not work

I am a student of artificial intelligence and I am studying knowledge graphs. However, I recently encountered a problem. I need to use neosemantics to import RDF files in Neo4j, but the neosemantics plugin cannot be used after downloading. I hope to get your help.

I tried to download directly using the desktop, but it showed "not Internet"
Then I tried to download manually,I downloaded the latest version of the plugin from the official website

And modified the neo4j.conf file

#********************************************************************
# Other Neo4j system properties
#********************************************************************
dbms.unmanaged_extension_classes=n10s.endpoint=/rdf

Running the following Cypher query in the Neo4j browser does not find any name starting with n10s, but HTTP shows that the endpoint is mounted

The log shows the following error:

I'm desperate for help, thanks!!

n10s is a few versions behind Neo4J ... if you really need to use it, you need to find an older version that is compatible.