I want to go straight to a solution record type without being need to select the record type. When i check the url i see that opp name it is different than the one from where i started the solution.

Here is my visualforcepage
<apex:page standardController="Solutions__c" recordSetVar="solutions" extensions="SolutionWrapper" >
        
        <script>        
            function redirect(){
                window.location.href='/a0A/e?CF00ND0000005pODo={!opp.Name}&CF00ND0000005pODo_lkid={!opp.Id}&retURL=%2F{!opp.Id}&RecordType=012D00000007LTY&Opportunity__c={!opp.Name}&Solution_Country__c={!sol.Solution_Country__c}={!acc.Country__c}&ent=01ID0000000uXce';
            }
            window.onload = window.setTimeout(redirect(),5000);
        </script>

</apex:page>

Controller :

public with sharing class SolutionWrapper {
    public Opportunity opp{get; set;}
    public Solutions__c oppId{get; set;}
    public Solutions__c sol{get; set;}
    public Solutions__c solution{get; set;}
    public Account acc{get; set;}
  
    public SolutionWrapper(ApexPages.StandardSetController controller) {
        try{
            solution = new Solutions__c();
            solution = (Solutions__c)controller.getRecord();
            if(solution.Id != null){
                oppId = [SELECT id, Solutions__c.Opportunity__c,Mail_Merge_Id__c
                    FROM Solutions__c
                WHERE id =: solution.id
                OR Mail_Merge_Id__c =: solution.Mail_Merge_Id__c 
                LIMIT 1];
                
                opp = [Select id,Name, AccountId, CurrencyIsoCode  from 
                         Opportunity where id =: oppId.Opportunity__c  LIMIT: 1];
            }
            
            if(opp.id !=null){
                sol = [SELECT id,Name, Mail_Merge_Id__c,Solution_Country__c, Solutions__c.Opportunity__c 
            FROM Solutions__c
            WHERE Solutions__c.Opportunity__c =: opp.id
            LIMIT 1];
                 acc = [Select id,Name,Country__c from 
                         Account where id=:opp.AccountId LIMIT: 1];
            }
            
            
        }
        catch(Exception e){
            ApexPages.addMessage(new ApexPages.message(ApexPages.Severity.ERROR,e.getMessage()));
        }

    }

}