Laravel - Inserting empty to Input Form and Insert Null Value to Database

How to insert an empty value to input text and set it to null to database, as I do this Im having an error because the rows of the database does not have a value. how can I do this without an error.

here is my error

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'title' cannot be null (SQL: insert into awards (title, description, awards_image, updated_at, created_at) values (, , a:0:{}, 2018-11-28 10:29:35, 2018-11-28 10:29:35))

my Controller

public function store(Request $request)
{
    $this->validate($request, [
        'title' => 'nullable',
        'description' => 'nullable',
        'awards_image.*' =>  'image|nullable|max:1999'
    ]);
    $awards = [];
    if ($request->has('awards_image'))
    {   
        //Handle File Upload


        foreach ($request->file('awards_image') as $key => $file)
        {
            // Get FileName
            $filenameWithExt = $file->getClientOriginalName();
            //Get just filename
            $filename = pathinfo( $filenameWithExt, PATHINFO_FILENAME);
            //Get just extension
            $extension = $file->getClientOriginalExtension();
            //Filename to Store
            $fileNameToStore = $filename.'_'.time().'.'.$extension;
            //Upload Image
            $path = $file->storeAs('public/awards_images',$fileNameToStore);
            array_push($awards, $fileNameToStore);
        }

        $fileNameToStore = serialize($awards);
    }
    else
    {
        $fileNameToStore='noimage.jpg';
    }

        $awardsContent = new Award;
        $awardsContent->title = $request->input('title');
        $awardsContent->description = $request->input('description');
        $awardsContent->awards_image = $fileNameToStore;
        $awardsContent->save();
         return redirect('/admin/airlineplus/awards')->with('success', 'Content Created');
}

via Chebli Mohamed