Captcha Incorrect even if I put the correct letter

Yii 2.0 General Discussions
1

I have been trying to use captcha but on validation it brings error saying it not correct.

In the model here is my code:




public $verifyCode;


 public function rules()

    {

        $rules = parent::rules();

        $rules[] = ['location','string','max'=>50];

        $rules[]=['verifyCode','captcha','caseSensitive'=>true];

        return $rules;

    }

In view :


<?= $form->field($model, 'verifyCode')->widget(Captcha::className(), ['captchaAction' => ['/site/captcha']

]) ?>

I attach the image of the captcha field in the browser after putting filling it

2

Is there Any problem with my code?