Go in to your app/storage folder and make sure logs is set too. What permissions are you giving it?

sudo chmod -R 755 logs

i'v changed the folder with

find app/storage -type d -exec chmod 777 {} ; find app/storage -type f -exec chmod 777 {} ;

Temporarily try

sudo chomd -R 777 logs

What user / group is your webserver running under? 5 is only read and execute (no write).

oh ok finaly some errors this is the problem finally

    public function save($path = null, $quality = 90)
    {
        $path = is_null($path) ? ($this->dirname .'/'. $this->basename) : $path;
        $saved = @file_put_contents($path, $this->encode(pathinfo($path, PATHINFO_EXTENSION), $quality));
 
        if ($saved === false) {
            throw new Exception\ImageNotWritableException;
        }

What's the issue now?

i'm using intervention for image display, save.

the problem is when i'm trying to save image solved it with

Image::make($image->getRealPath())->resize(100, 100)->save(public_path().'/img/products/'.$filename);

public_path() gives me the correct path

thanks again Kreitje any suggestions how to remove public folder ?

What error are you getting now?