Error Appending Records

Hello,

i'm new with access and was wondering if i can get some help with an append query?

I'm getting an error message that state the following below:

*Microsoft Access can't append all the records in the append query.
Microsoft Access set 36 field(s) to Null due to a type conversion failure, and it didn't add 0 records to the table due to key violations, 0 records due to lock violations, and 0 records due to validation rule violations.

This is my append query below:

INSERT INTO CustExportHoldCiti ( Custodian, CustAcct, Ticker, Cusip, CurrCode, SecurityName, Shares, CustCost, CustValue, POI, OriginalDiscount, HoldingType, Loc, Expr1 )
SELECT DISTINCT [CitiBank Current Holdings].Custodian, [CitiBank Current Holdings].[Account Number], SecSymbolsAll.SecSymbol AS Ticker1, [CitiBank Current Holdings].CUSIP1, [CitiBank Current Holdings].Curr, [CitiBank Current Holdings].[Security Description], [CitiBank Current Holdings].Shares, [CitiBank Current Holdings].CustCost, [CitiBank Current Holdings].CustValue, [CitiBank Current Holdings].POI, [CitiBank Current Holdings].OriginalDiscount, [CitiBank Current Holdings].HoldingType, dbo_Locations.Location, [date] AS Expr1
FROM [CitiBank Current Holdings] LEFT JOIN (SecSymbolsAll LEFT JOIN dbo_Locations ON SecSymbolsAll.LocationID = dbo_Locations.LocationID) ON [CitiBank Current Holdings].Ticker = SecSymbolsAll.SecSymbol
WHERE (((SecSymbolsAll.SecSymbol) Is Not Null));

I can't figure out what is wrong with it. Thank you for the help.