SQLSTATE[HY093]:Invalid parameter number:parameter was not defined - php

Question

Problem came multiple times, but I really can not find the mistake in my code. I saw that the solutions are in misspelled words usually, but I can not find that. So I thought that maybe I am wrong in something other because I am new in using PDO.
I am making signup page and error is
SQLSTATE[HY093]: Invalid parameter number: parameter was not defined
here is my code:
//index.php
if(isset($_POST['btn-signup-preduzece'])) {
$uname = trim($_POST['pr-username']); //there are inputs in my html
$umail = trim($_POST['pr-email']);
$upass = trim($_POST['pr-password']);
$comp = trim($_POST['pr-naziv']);
$maticni = trim($_POST['pr-maticni']);
$pib = trim($_POST['pr-pib']);
$sifra = trim($_POST['pr-sifra']);
$racun = trim($_POST['pr-racun']);
$adresa = trim($_POST['pr-adresa']);
if($uname=="") {
$error[] = "provide username !";
}
else if($umail=="") {
$error[] = "provide email id !";
}
else if(!filter_var($umail, FILTER_VALIDATE_EMAIL)) {
$error[] = 'Please enter a valid email address !';
}
else if($upass=="") {
$error[] = "provide password !";
}
else {
try {
$stmt = $DB_con->prepare("SELECT username,email FROM preduzeca WHERE username=:uname OR email=:umail");
$stmt->execute(array(':uname'=>$uname, ':umail'=>$umail));
$row=$stmt->fetch(PDO::FETCH_ASSOC);
if($row['username']==$uname) {
$error[] = "sorry username already taken !";
}
else if($row['email']==$umail) {
$error[] = "sorry email id already taken !";
}
else {
//PROBLEM IS HERE IN THIS FUNTION BELLOW, when I put here some echo it writes me that, but if i put echo bellow this if statement it gives me nothing
if($user->registerPreduzece($uname,$upass,$umail, $comp, $maticni, $pib, $sifra, $racun, $adresa)) {
$user->redirect('ostalo/uspesno.php');
}
}
}
catch(PDOException $e) {
echo $e->getMessage();
}
}
}
and here is my problematic function form class User
public function registerPreduzece($uname,$upass,$umail, $comp, $maticni, $pib, $sifra, $racun, $adresa) {
try
{
$new_password = password_hash($upass, PASSWORD_DEFAULT);
$stmt = $this->db->prepare("INSERT INTO preduzeca(naziv,maticniBroj,PIB,sifraDelatnosti,racun,adresa,username,password,email)
VALUES(:comp, :maticni, :pib, :sifra, :racun, :adresa, :uname, :upass, :umail)");
$stmt->bindparam(":naziv", $comp);
$stmt->bindparam(":maticniBroj", $maticni);
$stmt->bindparam(":PIB", $pib);
$stmt->bindparam(":sifraDelatnosti", $sifra);
$stmt->bindparam(":racun", $racun);
$stmt->bindparam(":adresa", $adresa);
$stmt->bindparam(":username", $uname);
$stmt->bindparam(":password", $new_password);
$stmt->bindparam(":email", $umail);
$stmt->execute();
return $stmt;
}
catch(PDOException $e)
{
echo $e->getMessage();
}
}
and my table
CREATE TABLE `preduzeca` (
`idPreduzeca` int(10) UNSIGNED NOT NULL,
`naziv` varchar(45) NOT NULL,
`maticniBroj` varchar(8) DEFAULT NULL,
`PIB` varchar(11) DEFAULT NULL,
`sifraDelatnosti` varchar(5) DEFAULT NULL,
`racun` varchar(20) DEFAULT NULL,
`adresa` int(11) DEFAULT NULL,
`username` varchar(45) NOT NULL,
`password` varchar(45) NOT NULL,
`email` varchar(45) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
ALTER TABLE `preduzeca`
ADD PRIMARY KEY (`idPreduzeca`),
ADD UNIQUE KEY `idfirme_UNIQUE` (`idPreduzeca`),
ADD UNIQUE KEY `username_UNIQUE` (`username`),
ADD UNIQUE KEY `maticniBroj_UNIQUE` (`maticniBroj`),
ADD UNIQUE KEY `PIB_UNIQUE` (`PIB`),
ADD UNIQUE KEY `racun_UNIQUE` (`racun`),
ADD KEY `fk_preduzeca_adrese1_idx` (`adresa`);

Answer 1

The binding of your parameters seems to be off. Try instead
$stmt = $this->db->prepare("INSERT INTO preduzeca(naziv,maticniBroj,PIB,sifraDelatnosti,racun,adresa,username,password,email)
VALUES(:comp, :maticni, :pib, :sifra, :racun, :adresa, :uname, :upass, :umail)");
$stmt->bindparam(":comp", $comp);
$stmt->bindparam(":maticni", $maticni);
$stmt->bindparam(":pib", $pib);
$stmt->bindparam(":sifra", $sifra);
$stmt->bindparam(":racun", $racun);
$stmt->bindparam(":adresa", $adresa);
$stmt->bindparam(":uname", $uname);
$stmt->bindparam(":upass", $new_password);
$stmt->bindparam(":umail", $umail);
$stmt->execute();