Wrong IV length: must be 16 bytes long

Question

I'm trying to encrypt and decrypt using a given IV (HEX) and secret key (HEX).

Here is my code

private static final String key = "K7P21EA886E95E689A1BB3DBAD068D7A" //HEX;
private static final String initVector = "36R43E0639A76C5A5E0C5BC9E3A91538" //HEX

//ENCRYPTION
public static String encrypt(String value) {
    try {
        IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
        SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
 
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
 
        byte[] encrypted = cipher.doFinal(value.getBytes());
        
        return new String(Base64.getEncoder().encode(encrypted));
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return null;
}

//decryption
public static String decrypt(String encrypted) {
    try {
        IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
        SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
 
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
        byte[] original = cipher.doFinal(Base64.getDecoder().decode(encrypted));
        return new String(original);
    } catch (Exception ex) {
        ex.printStackTrace();
    }
 
    return null;
}

I get this exception:

java.security.InvalidAlgorithmParameterException: Wrong IV length: must be 16 bytes long.

I'm new to encryption and I need help.