Good to know you're all sorted.
To tie the loose ends, a few comments about the warnings/errors in the log :
WARN [o.n.k.a.p.GlobalProcedures] Failed to load ...
Those are expected APOC warnings : some procedures rely on external jars that are not present in your plugin directory (for example jdbc driver jars would be needed to use the load jdbc procedures).
ERROR [o.n.b.r.s.i.ErrorReporter] Client triggered an unexpected error [Neo.DatabaseError.General.UnknownError]: Lexical error at line 1, column 175. Encountered: after : ""
That's generally just a cypher syntax issue. Maybe a query with unclosed quotes or something of the sort.
Regards,
David