Hello - I have a Visualforce page that's working in the sandbox but not production. There's one field that isn't being saved when the user saves the record, the field is called Date_of_Gift__c. It displays but the value isn't saved. I'm thinking there's an issue with the controller. Here it is:
 

public with sharing class CharitableContributionEditLayoutCont {
    private final Charitable_Contribution__c charity;
    public Charitable_Contribution__c newcharity {get; set;}
    public Charitable_Contribution__c oldcharity {get; set;}   
    public String fromAccount {get; set;}
    public List<SelectOption> fromAccounts {get; set;}
    public Attachment attachment {get; set;} 
    public String cloneValue {get; set;}
    public String toAccount {get; set;}
    public List<SelectOption> toAccounts {get; set;}
    public String fciRecordTypeId {get; set;}
    public String notfciRecordTypeId {get; set;}
    
    public CharitableContributionEditLayoutCont(ApexPages.StandardController sc)
    {
        this.charity = (Charitable_Contribution__c)sc.getRecord();
        attachment = new Attachment();
        cloneValue = ApexPages.currentPage().getParameters().get('clone');
        
        if (String.isBlank(cloneValue) && String.isBlank(charity.Id))
        {
            newcharity = charity;
            newcharity.RecordTypeId = ApexPages.currentPage().getParameters().get('RecordType');
        } else {
            oldcharity = [SELECT Id, Amount__c, RecordTypeId, Additional_Comments_Requirements__c, Additional_Internal_Instructions__c,
                                Client__c, Client_Analyst__c, Client_Specialist__c, New_Unlisted_Organization_Contact_Name__c, To_Account_Client_Lookup__c, 
                                Designation__c, RecordType.Name, Disposition_Method__c, Donor_s_Name_s__c, FC__c, Fidelity_Account__c, To_Account__c,
                                High_Price__c, Low_Price__c, Need_Client_Signature__c, Notes__c, Organization__c, New_Unlisted_Organization_Name__c,
                                Phone__c, Request_Date__c, Status__c, Stock_Ticker_Name_and_CUSIP_Lookup__c, Final_of_Shares__c, Pending_Collateral_Transfer__c, Date_of_Gift__c
                                FROM Charitable_Contribution__c WHERE Id = :charity.Id];
        }
        
        if (String.isNotBlank(cloneValue))
        {
            newcharity = oldcharity.clone(false, true);
            newcharity.Status__c = Constants.CHARITABLE_CONTRIBUTION_STATUS_NEW;
        } else if (String.isNotBlank(charity.Id)) {
            newcharity = oldcharity.clone(true, true);
        }
        
        fciRecordTypeId = Utils.GetRecordTypeIdFromName(new Charitable_Contribution__c(), Constants.CHARITABLE_CONTRIBUTION_RECORDTYPE_FCI_MANAGED);
        notfciRecordTypeId = Utils.GetRecordTypeIdFromName(new Charitable_Contribution__c(), Constants.CHARITABLE_CONTRIBUTION_RECORDTYPE_NOT_FCI_MANAGED);     
        
        if (String.isNotBlank(charity.Id))
        {
            fromAccount = newcharity.Fidelity_Account__c;
            toAccount = newcharity.To_Account__c;
            getFromAccounts();
            getToAccounts();
        }
    }
    
    public PageReference getFromAccounts()
    {
        fromAccounts = new List<SelectOption>();
        List<SelectOption> accounts = new List<SelectOption>();

        for (Bank_Account__c ba : [SELECT Id, Name, Account_Type__c, Account_Number__c  
                                    FROM Bank_Account__c 
                                    WHERE Entity__c = :newcharity.Client__c ORDER BY Account_Number__c])
        {
            accounts.add(new SelectOption(ba.Id, ba.Account_Type__c + ' - ' + ba.Account_Number__c));
        }
        
        if (accounts.size() > 1)
            fromAccounts.add(new SelectOption('', 'Select One'));
            
        fromAccounts.addAll(accounts);
        return null;
    }
    
    public PageReference GetToAccounts()
    {
        toAccounts = new List<SelectOption>();
        List<SelectOption> toaccts = new List<SelectOption>();

        for (Bank_Account__c ba : [SELECT Id, Name, Account_Type__c, Account_Number__c  
                                    FROM Bank_Account__c 
                                    WHERE Entity__c = :newcharity.To_Account_Client_Lookup__c ORDER BY Account_Number__c])
        {
                toaccts.add(new SelectOption(ba.Id, ba.Account_Type__c + ' - ' + ba.Account_Number__c));    
        }
            
        if (toaccts.size() > 1)
            toAccounts.add(new SelectOption('', 'Select One'));
            
        toAccounts.addAll(toaccts);
        return null;    
    }    
    
    public Boolean getIsLocked()
    {
        if (String.isNotBlank(newcharity.Id) && !(String.isBlank(newcharity.Status__c) 
            || newcharity.Status__c == Constants.CHARITABLE_CONTRIBUTION_STATUS_NEW))
        {
            return true;
        }
        return false;
    }
    
    public String getFinalValuationUserId()
    {
        String userName = FCICommunitySettings__c.getInstance().FinalValuationUserName__c;

        if(Test.isRunningTest())
                userName = 'DeDe Connors';

        return [SELECT Id FROM User WHERE Name = :userName AND IsActive = true LIMIT 1].Id;
    }
    
    public Boolean getCharitableContributionUser()
    {
        Group groupId = [SELECT Id, (SELECT UserOrGroupId FROM GroupMembers) FROM Group WHERE DeveloperName = 'Charitable_Contribution_Users' AND Type = 'Queue'];
        
        for (GroupMember g : groupId.GroupMembers)
        {
            if (g.UserOrGroupId == UserInfo.getUserId())
            {
                return true;
            }
        }
        return false;
    }
    
    public PageReference save()
    {
        if (newcharity.Status__c == Constants.CHARITABLE_CONTRIBUTION_STATUS_FINAL_VALUATION && UserInfo.getUserId() == getFinalValuationUserId())
        {
            SaveHighLowShares s = new SaveHighLowShares();
            s.SaveHighLow(newcharity.Id, newcharity.High_Price__c, newcharity.Low_Price__c, newcharity.Final_of_Shares__c);
            return new PageReference('/' + newcharity.Id);
        }
        
        if (newcharity.Status__c == Constants.CHARITABLE_CONTRIBUTION_STATUS_DRAFT_VALUATION && getCharitableContributionUser())
        {
            SaveHighLowShares s = new SaveHighLowShares();
            s.SaveShares(newcharity.Id, newcharity.Final_of_Shares__c);
            return new PageReference('/' + newcharity.Id);
        }
        
        if (String.isBlank(fromAccount))
        {
            ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.ERROR, 'The From Account is a required field.'));
        } else {
            newcharity.Fidelity_Account__c = fromAccount;
            newcharity.To_Account__c = toAccount;
            upsert newcharity;
            
            if (attachment.body != null)
            {
                attachment.ParentId = newcharity.Id;
                insert attachment;
            }
                
            if (String.isNotBlank(cloneValue))
            {   
                List<Attachment> attachmentsInsert = new List<Attachment>();
                List<Note> notesInsert = new List<Note>();
                
                for (Attachment a : [SELECT Name, Body FROM Attachment WHERE ParentId = :charity.Id])
                {
                    Attachment att = new Attachment(
                        Name = a.Name,
                        Body = a.Body,
                        ParentId = newcharity.Id
                    );
                    attachmentsInsert.add(att);
                }
                
                for (Note n : [SELECT Title, Body FROM Note WHERE ParentId = :charity.Id])
                {
                    Note nt = new Note(
                        Title = n.Title,
                        Body = n.Body,
                        ParentId = newcharity.Id
                    );
                    notesInsert.add(nt);
                }
                
                if (attachmentsInsert.size() > 0)
                    insert attachmentsInsert;  
                    
                if (notesInsert.size() > 0)
                    insert notesInsert;             
            }   
                
            return new PageReference('/' + newcharity.Id);
        }       
        return null;
    } 
    
    public without sharing class SaveHighLowShares {
        public void SaveHighLow(Id id, Decimal high, Decimal low, Decimal shares)
        {
            Charitable_Contribution__c c = new Charitable_Contribution__c(
                Id = id,
                High_Price__c = high,
                Low_Price__c = low,
                Final_of_Shares__c = shares
            );
            update c;
        }
        
        public void SaveShares(Id id, Decimal shares)
        {
            Charitable_Contribution__c c = new Charitable_Contribution__c(
                Id = id,
                Final_of_Shares__c = shares
            );
            update c;           
        }
    }           
}

Specifically I think the issue is on line 130, this one:
 

s.SaveHighLow(newcharity.Id, newcharity.High_Price__c, newcharity.Low_Price__c, newcharity.Final_of_Shares__c);

That line references the other fields that are visible on the Visualforce page, but when I try to add the new field (Date_of_Gift__c) it gives me the following error:

Error: Compile Error: Method does not exist or incorrect signature: [CharitableContributionEditLayoutCont.SaveHighLowShares].SaveHighLow(Id, Decimal, Decimal, Decimal, Date) at line 130 column 13

I'm not sure what I'm doing wrong. Anyone have any ideas? Thank you in advance!