Get error ORA-01722: invalid number while test function - oracle

Question

I am a little bit confuse in this problem and I have no idea what's wrong here.
I have function like this
FUNCTION GET_ARTICLES_ADDIOTION_WORK(p_ataID IN INT)
RETURN SYS_REFCURSOR IS
rc SYS_REFCURSOR;
/*getArticlesAdditionalWork*/
BEGIN
OPEN rc FOR
SELECT
aa.ID,
aa.Name,
aa.Quantity,
aa.Unit,
aa.Price,
aa.Deduct,
aa.Account,
aa.Created
FROM
ata_articles aa
LEFT JOIN
weekly_report wr
ON
aa.wrId = wr.id
WHERE
aa.AtaId = p_ataID
AND
aa.type = 1
AND
(aa.wrId = 0 OR (wr.status = 2 OR wr.status = 5))
ORDER BY Name;
RETURN rc;
END GET_ARTICLES_ADDIOTION_WORK;
Somehow, when I want to test does this function work fine I following statment
SELECT ATA_PACKAGE.GET_ARTICLES_ADDIOTION_WORK(2014) from dual
I get error
ORA-01722: invalid number
01722. 00000 - "invalid number"
*Cause: The specified number was invalid.
*Action: Specify a valid number.
While I also try to run query without function also same error occure.
SELECT
aa.ID,
aa.Name,
aa.Quantity,
aa.Unit,
aa.Price,
aa.Deduct,
aa.Account,
aa.Created
FROM
ata_articles aa
LEFT JOIN
weekly_report wr
ON
aa.wrId = wr.id
WHERE
aa.AtaId = 2116
AND
aa.type = 1
AND
(aa.wrId = 0 OR (wr.status = 2 OR wr.status = 5))
ORDER BY Name;
So far I check in table and ataId is NUMBER, it's not string. I have no idea what is wrong here ?
What couse this problem ? What I miss ? Where the error comes from ?
Ata_Article Table Definition
ACCOUNT VARCHAR2(255 CHAR)
ARTICLEPAYMENTTYPE NUMBER(10,0)
ATAID NUMBER(10,0)
CLIENTCOMMENT VARCHAR2(255 CHAR)
CLIENTEMAIL VARCHAR2(255 CHAR)
CLIENTFINALSTATUS NUMBER(10,0)
CLIENTSTATUS NUMBER(10,0)
CREATED DATE
DEDUCT NUMBER(10,0)
EXTERNAL NUMBER(10,0)
ID NUMBER(10,0)
NAME VARCHAR2(255 CHAR)
PRICE FLOAT
PROJECTID NUMBER(10,0)
QUANTITY VARCHAR2(255 CHAR)
SUPPLIERINVOICEID NUMBER(10,0)
TABLETYPE VARCHAR2(50 CHAR)
TOTAL FLOAT
TYPE VARCHAR2(4000 CHAR)
UNIT VARCHAR2(255 CHAR)
WRID NUMBER(10,0)
Weekly_Report Table Definition
ANSWERDATE DATE
ANSWEREMAIL VARCHAR2(50 CHAR)
ANSWERIP VARCHAR2(50 CHAR)
ATAID NUMBER(10,0)
COMMENT_ VARCHAR2(2000 CHAR)
CREATED DATE
DUEDATE DATE
EXTERNAL NUMBER(10,0)
FINANCEID NUMBER(10,0)
ID NUMBER(10,0)
NAME VARCHAR2(45 CHAR)
PARENT NUMBER(10,0)
PDF_URL VARCHAR2(255 CHAR)
PROJECTID NUMBER(10,0)
SEEN DATE
STATUS NUMBER(10,0)
TOKEN VARCHAR2(50 CHAR)
WEEK NUMBER(10,0)
YEAR NUMBER(10,0)

Answer 1

So after a sort discussion we figurated out that the column aa.type has been defined as varchar2 and is being compared to a number. That was the root cause