Good Morning,

I facing an error in Batch class : 

Merge failed. First exception on row 0 with id 0030U00001ESVzyQAH; first error: LIMIT_EXCEEDED, System.LimitException: Too many queueable jobs added to the queue: 2: []

Code: 

global class MergeContactBatch implements database.Batchable<sObject>{
    
    String Name = '%Test%';
    global Database.QueryLocator start(Database.BatchableContext BC){
        String query = 'SELECT Id FROM Contact WHERE Email = NULL AND Name LIKE \''+Name+'\'';
        return Database.getQueryLocator(query);
    }
    
    global void execute(Database.BatchableContext BC, List<Contact> scope){
        
        Contact masterConact = MergeContactBatch.getContact();
        
        List<Contact> dupcontactList = new List<Contact>();
        Set<Id> Ids = new Set<Id>();
        for(Contact contactRecrd : scope){
            Ids.add(contactRecrd.Id);
            dupcontactList.add(contactRecrd);
        }
        
        List<Contact> contactList = [SELECT Id FROM Contact WHERE Id IN: Ids];
        for(Contact con : contactList){
            Database.merge(masterConact, con);
        }
        
       // Database.MergeResult[] results = Database.merge(masterConact, dupcontactList);
    }
    
    global void finish(Database.BatchableContext BC){}
    
    
    public Static Contact getContact(){
        
        List<Contact> contactList = [SELECT Id FROM Contact WHERE Id = '0030U00001ESW0S'];
        if(!contactList.isEmpty()){
            return contactList[0];
        }else{
            return null;
        }
    }
}

please help me,

Thanks,
Dhilip Dussa