I agree with Seyed-it can be a whole host of issues, but go to that link and drop the latest jar in the plugins-as he said.
May also want to double-check that on Conf file
Other Neo4j system properties
#**********************************************...
@guinametal Louvain was what I was looking for when I had a similar issues-CALL algo.list() not displaying the full list of Graph Algorithms. Attached shot is of my Other Neo4j system properties
Another thing you might want to try is downloading:
n...
I had something similar at first using Graph Algorithms on 3.5.12 and fixed by adjusting Other Neo4j system properties in Conf file:
dbms.security.procedures.whitelist=algo.*
dbms security.procedures.unrestricted=algo.*
Those are in addition to any o...