Save error: Invalid field ver for SObject Verifier__c Force.com save problem

Follwing is my code

Apex Class Code

public with sharing class verifierclass{ public string applicationId {get;set;}
public verifierclass(ApexPages.StandardController stdCtrl) 
{
    this.application=(Application__c)stdCtrl.getRecord();
    
    lstVerifierWrapper=new List<verifierWrapper>();
    
    lstVerifier =[SELECT Title__c, Signature__c, Residential_Address__c, Name, Id, Date_Of_Birth__c, Application__c 
                        FROM Verifier__c
                        WHERE Application__c = : application.id];
    verifier = new Verifier__c();
}public class verifierWrapper
  {
    public Integer ident {get; private set;}        
    public Verifier__c ver {get; set;}

    public verifierWrapper(Integer inIdent,Verifier__c verifier) 
    {         
        ver=verifier;  
        ident=inIdent;   
    }
  } public PageReference AddVerifier()
{
    Verifier__c verifier;
    for(Verifier__c c1 : lstVerifier)
    {
        verifier=c1;
        verifier.Application__c = application.Id;
    }
   
     for (Integer idx=0; idx<addCount; idx++)   
        {    
            lstVerifierWrapper.add(new verifierWrapper(nextIdent++,verifier));   
        }
   
    return null;            
}   public PageReference RemoveVerifier()
{
    Integer toDelPos=-1;   
       for (Integer idx=0; idx<lstVerifierWrapper.size(); idx++)   
       {    
            if (lstVerifierWrapper[idx].ident==toDelIdent)    
            {    
                 toDelPos=idx;    
            }   
       }       
        if (-1!=toDelPos)   
        {    
          lstVerifierWrapper.remove(toDelPos);   
        }  
        return null;
}}   

Page Code:

<apex:outputPanel id="opVerifyingOfficer" rendered="{!(application.Verifying_Officer__c == 'Yes')}">
                                    <apex:pageBlock id="pbVerifyingOfficerInfo" >
                                        <apex:pageBlockSection columns="1"
                                            id="pbsVerifierOfficerInfo"
                                            title="Verifying Officer Details">
                                            <apex:inputField value="{!verifier.Name}" />
                                            <apex:inputField value="{!verifier.Title__c}" />
                                            <apex:inputField value="{!verifier.Residential_Address__c}" />
                                            <apex:inputField value="{!verifier.Date_Of_Birth__c}" />
                                            <apex:inputField value="{!verifier.Signature__c}" />
                                        </apex:pageBlockSection>
                                        <apex:outputText value="Add Verifier"
                                            style="font-weight:bold" />&nbsp;&nbsp;
<apex:commandButton value="Add" action="{!AddVerifier}"
                                            rerender="pbsVerifyingOfficerInfo">
                                            <apex:param name="addCount" value="1" assignTo="{!addCount}" />
                                        </apex:commandButton>

                                        <br />
                                        <br />
                                        <apex:repeat value="{!lstVerifierWrapper}"
                                            var="verifier">
                                            <apex:pageBlockSection columns="1"
                                                id="pbsVerifierOfficerInfo"
                                                title="Verifying Officer Details">
                                                <apex:inputField value="{!verifier.ver.Name}" />
                                                <apex:inputField value="{!verifier.ver.Title__c}" />
                                                
                                                <apex:commandButton value="Remove"
                                                    action="{!RemoveVerifier}"
                                                    rerender="pbsVerifyingOfficerInfo">
                                                    <apex:param name="toDelIdent" value="{!verifier.ident}"
                                                        assignTo="{!toDelIdent}" />
                                                </apex:commandButton>
                                            </apex:pageBlockSection>  
                                        </apex:repeat>
                                        </apex:pageBlock>
                                        </apex:outputPanel>