PDO error: bound variables do not match - mysql

Question

Getting these errors on lines 33 and 54 (my statement execute lines for the two queries), but not sure why. Looks like my bound variables all line up. Any thoughts?
Warning: PDOStatement::execute() [pdostatement.execute]: SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens... on line 33
Warning: PDOStatement::execute() [pdostatement.execute]: SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens... on line 54
Also, I have concerns as to whether this will work and the binding will accept the $SID2 variable with correct value, but can't tell until above errors are resolved:
$SID = $dbh->lastInsertId();
$SID2 = $SID;
Here is the relevant code:
$dbh = new pdo('mysql:host='.$hostName.';dbname='.$dataBaseName, $user, $pass);
if(isset($_POST ['submit'])){
$user_ID = get_current_user_id();
$sql = "INSERT INTO stories(ID,
category,
genre,
rating,
story_name,
active) VALUES (
:ID,
:genre,
:rating,
:story_name,
:active)";
$stmt = $dbh->prepare($sql);
$stmt->bindParam(':ID', $user_ID, PDO::PARAM_STR);
$stmt->bindParam(':category', $_POST['category'], PDO::PARAM_STR);
$stmt->bindParam(':genre', $_POST['genre'], PDO::PARAM_STR);
$stmt->bindParam(':rating', $_POST['rating'], PDO::PARAM_STR);
$stmt->bindParam(':story_name', $_POST['story_name'], PDO::PARAM_STR);
$stmt->bindParam(':active', $a = 0, PDO::PARAM_STR);
$stmt->execute(); //line 33---error line
$SID = $dbh->lastInsertId();
$SID2 = $SID;
$sql2 = "INSERT INTO writing(ID,
SID,
text,
position,
approved) VALUES (
:ID,
:SID,
:text,
:position,
:approved)";
$stmt2 = $dbh->prepare($sql2);
$stmt->bindParam(':ID', $user_ID, PDO::PARAM_STR);
$stmt->bindParam(':SID', $SID2, PDO::PARAM_STR);
$stmt->bindParam(':text', $_POST['text'], PDO::PARAM_STR);
$stmt->bindParam(':position', $b = 0, PDO::PARAM_STR);
$stmt->bindParam(':approved', $c = 0, PDO::PARAM_STR);
$stmt->execute(); //line 54--error line

Answer 1

In first sql is one value missing
VALUES (
:ID,
:category, ---> inserted
:genre,
:rating,
:story_name,
:active)";
And the second one shuld be stmt2 instead of stmt i think (also the bind`s)

Answer 2

in your sql2 you bind to the wrong PDO object. You used $stmt->bindParam() instead of $stmt2->bindParam();
Just replact $stmt to $stmt2 in your $sql2 query.