When I try to dataload I am getting the below error but line 20 whwn checked in query editor works fine. Can some one help where is the mistake.

ERROR: ResearchApplicationTriggers: execution of AfterInsertcaused by: System.QueryException: List has no rows for assignment to SObjectClass.ResearchApplicationTriggerClass.createCOIautomatically: line 20, column 1Trigger.ResearchApplicationTriggers: line 7, column 1

Trigger Handler 

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//This Trigger is used to automatically create COI and update TechnicalAbstract from RAObject to COI
trigger ResearchApplicationTriggers on Research_Application__c (after insert, after update) {
     ResearchApplicationTriggerClass handler = new ResearchApplicationTriggerClass();
    for(Research_Application__c rap:trigger.new){
     if(Trigger.isInsert && Trigger.isAfter){
         system.debug(rap);
     handler.CreateCOIautomatically(rap); 
         //handler.UpdateCOItechnicalabstract(rap);
    }
     if(Trigger.isUpdate && Trigger.isAfter)
    {
        handler.UpdateCOItechnicalabstract(rap);
    }
}
}

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Trigger Handler Class

//This is a TriggerHandler Class that handles the triggers on ResearchApplication Object
public class ResearchApplicationTriggerClass {
public ResearchApplicationTriggerClass(){}
        //This method creates the COI automatically for all reviewers in the panel assignment for that particular panel.
    public void createCOIautomatically(Research_Application__c rap)
    {
      //Below Soql query gets the list of Reviewers assigned in the pane assignments for that particular Panel  
        list<panel_assignment__c> lp=[select Reviewer_Name__c from panel_assignment__C where panel__C in (select id from panel__c where id =: rap.panel__C )];
system.debug('The Reviewers are' + lp);
        
        for (integer i=0;i<lp.size();i++)
    {
  system.debug(lp[i].Reviewer_Name__c);
   COI_Expertise__c  c=new COI_Expertise__c();
        //Initialize and assign the the COI object with the fields we require
        c.Research_Application__c= rap.Id;
        system.Debug(c.Research_Application__c);
         c.Reviewer_Name__c = lp[i].Reviewer_Name__c;
      system.debug(lp[i].Reviewer_Name__c);
        user u=[select id,firstname,lastname from user where contactID=:lp[i].Reviewer_Name__c];
      Id  usrid=string.valueof(u.id);
        system.debug('USer ID:' + u.id + 'Reviewer ID' + lp[i].Reviewer_Name__c);
        //Assign the owner of the COI to be the same as Reviewer Name
          c.Ownerid = usrid;
       insert(c);
             } 
        
        
            
    }
    
    //This method copies the technical abstract on Research Application to the COI associated to it.
        public void updateCOItechnicalabstract(Research_Application__c rap)
    {
        //Below is the soql query to get the technical abstract from that particular research application
        Research_Application__c fa=[select id,technical_abstract__c from Research_Application__c where id=:rap.Id limit 1];
    system.debug(fa);

    //Below is the soql query to get the COI records from that particular research application
 list<COI_Expertise__c> c=[select id,technical_abstract__c from COI_Expertise__c where Research_Application__r.Id=:fa.Id];
  //Assign the technical abstract from RA to respective COI's
    for(COI_Expertise__c ci:c)
    {
   ci.Technical_Abstract__c=fa.Technical_Abstract__c;
     update(c);   
    }
    
        }
}