HI All,

Here is another script tried to insert 3 related record for opprtunity for 3 month (Jan,feb,March). But not working can anyone help please.
Script
Map <Id, Opportunity> oppItems = new Map <Id, Opportunity>();
       
    list<ARRCalcualateOpportunity__c> Arropplist= new list<ARRCalcualateOpportunity__c>();
        list<Opportunity> opplist= new list<Opportunity>();
    for(opportunity opp:opplist){
       if (opp.StageName == 'Closed Won'&& opp.closeDate.month() >=1 && opp.closeDate.month() <=3 ) 
        {
          oppItems.put(opp.Id, opp);
        }
    }
    
    List<OpportunityLineItem> oliList = [select Id, Name, Product2Id, Product2.Family from 
                                         OpportunityLineItem where OpportunityId IN:oppItems.keyset()];
        
        for(OpportunityLineItem oli :oliList)
        {
             

            if(oli.product2.family == 'software Recurring__c')
                 
                //Date dt = oppobj.closedate;
                    
                     for(Integer i =1;i<=12;i++)
            {
              ARRCalcualateOpportunity__c arrOpp = new ARRCalcualateOpportunity__c();
              arropp.name = oppItems.get(oli.OpportunityId).Name;
              arropp.ownerId = oppItems.get(oli.OpportunityId).OwnerId; 
              arropp.OpportunityArr__c=oppItems.get(oli.OpportunityId).Id;  
                System.debug('arropp list'+arropp);
              Arropplist.add(arropp);
               System.debug('arropp list'+arropplist);
            }
        }
        
        if(Arropplist.size() >0){
          insert Arropplist;
        }