Failed to invoke procedure `apoc.cypher.parallel2`

Neo4j Graph Platform
1

Hello,

I am trying to use apoc.cypher.parallel2 to merge some nodes and relationships in a parallel way. However i get this error

ClientError: [Procedure.ProcedureCallFailed] Failed to invoke procedure `apoc.cypher.parallel2`: Caused by: org.neo4j.graphdb.security.AuthorizationViolationException: Create node with labels 'SMNode' on database 'neo4j' is not allowed for user 'neo4j' with roles [PUBLIC, admin] overridden by READ.

I am using py2neo for this statement:

statement= """ 
    CALL apoc.cypher.parallel2(
        'UNWIND params as param
        MATCH (g:GNode),(s:SNode{code:param.code})
        MERGE (s)-[:FIRST_RELATIONSHIP]->(sm:SMNode)-[:SECOND_RELATIONSHIP]->
                                (o:ONode)-[:THIRD_RELATIONSHIP]->(g)',
        {params:$parameters},
        'params'
    )
"""

where parameters is a list of lists of dictionaries.

Why do i get this error and is there another way to parallel create nodes(i also tried apoc.periodic.iterate with parallel=true but i got some Deadlock errors) .

Thank you!