(Java) How can I fix this SLQ error? Is something wrong with the date perhaps? (I put line 23 in bold)

UCAExc:::4.0.3 data exception: invalid character value for cast

at net.ucanaccess.jdbc.UcanaccessStatement.executeUpdate(UcanaccessStatement.java:230)

at Week10.SpidermanIns.main(SpidermanIns.java:23)

Caused by: java.sql.SQLDataException: data exception: invalid character value for cast

at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)

at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)

at org.hsqldb.jdbc.JDBCStatement.fetchResult(Unknown Source)

at org.hsqldb.jdbc.JDBCStatement.executeUpdate(Unknown Source)

at net.ucanaccess.jdbc.ExecuteUpdate.executeWrapped(ExecuteUpdate.java:65)

at net.ucanaccess.jdbc.AbstractExecute.executeBase(AbstractExecute.java:264)

at net.ucanaccess.jdbc.ExecuteUpdate.execute(ExecuteUpdate.java:48)

at net.ucanaccess.jdbc.UcanaccessStatement.executeUpdate(UcanaccessStatement.java:228)

... 1 more

Caused by: org.hsqldb.HsqlException: data exception: invalid character value for cast

at org.hsqldb.error.Error.error(Unknown Source)

at org.hsqldb.error.Error.error(Unknown Source)

at org.hsqldb.Scanner.convertToNumber(Unknown Source)

at org.hsqldb.types.NumberType.convertToType(Unknown Source)

at org.hsqldb.StatementDML.getInsertData(Unknown Source)

at org.hsqldb.StatementInsert.getResult(Unknown Source)

at org.hsqldb.StatementDMQL.execute(Unknown Source)

at org.hsqldb.Session.executeCompiledStatement(Unknown Source)

at org.hsqldb.Session.executeDirectStatement(Unknown Source)

at org.hsqldb.Session.execute(Unknown Source)

... 7 more

package Week10;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

public class SpidermanIns

{

public static void main(String[] args)

{

String url = "jdbc:ucanaccess://C:/Users/nkman/Documents/ComicBookStore.accdb"; //connects to Access File

Connection con;

Statement stmt;

String query = "select * from ComicInventory "; //selects database

try

{

con = DriverManager.getConnection(url, "", "");

stmt = con.createStatement();

stmt.executeUpdate("insert into ComicInventory " + "values('Amazing SM', '89', '10/1/70', 'Doc Ock Lives', '$6.50', 'No')");

stmt.executeUpdate("insert into ComicInventory " + "values('Spectacular SM', '92', '7/1/84', 'What Is The Answer', '$4.50', 'No')");

stmt.executeUpdate("insert into ComicInventory " + "values('Web Of SM', '89', '10/1/70', 'Doc Ock Lives', '$6.50', 'No')");

stmt.executeUpdate("insert into ComicInventory " + "values('Amazing SM', '89', '10/1/70', 'Doc Ock Lives', '$6.50', 'No')");

ResultSet rs = stmt.executeQuery(query);

System.out.println("ComicInventory");

System.out.println("\tComicName\tIssueNumber\tIssueDate\tIssueName\tIssueValue\tMintCondition"); //prints columns

while (rs.next())

{

String comicname = rs.getString("ComicName"); //these are used to print out values in output

int issuenumber = rs.getInt("IssueNumber");

int issuedate = rs.getInt("IssueDate");

String issuename = rs.getString("IssueName");

int issuevalue = rs.getInt("IssueValue");

String mintcondition = rs.getString("MintCondition");

System.out.println( comicname + " " + issuenumber + " " + issuedate + " " + issuename

+ " " + issuevalue + " " + mintcondition);

}

stmt.close();

con.close();

System.exit(0);

}

catch(SQLException ex)

{

System.out.println("SQLException");

System.out.println(ex.getMessage());

ex.printStackTrace();

}

}

}