Imagick Unable to open image

Everything was working perfectly but suddenly Imagick start refusing to resize images saying :

Imagine\Exception\RuntimeException Unable to open image C:/wamp/www/gop/web/media/comments/no_409_88.png but the image is there.

And the other error message is : NoDecodeDelegateForThisImageFormat `C:/Windows/TEMP/magick-492W-Re3UD3pQ1F’ @ error/constitute.c/ReadImage/555 in C:\wamp\www\gop\vendor\imagine\imagine\lib\Imagine\Imagick\Imagine.php at line 130

Here is my code:


 Image::thumbnail('@webroot/media/comments/no_409_88.png',210,210)->save(Yii::getAlias('@webroot/media/comments/me_409_88.png), ['quality' =>50]);

use it:Preformatted text Image::thumbnail(’@webroot/media/comments/no_409_88’,210,210)->save(Yii::getAlias(’@webroot/media/comments/me_409_88.png), [‘quality’ =>50]);`