Php 500内部服务器错误ajax/laravel

因此，我试图创建一个动态评论部分，但这个问题似乎困扰我500内部服务器错误。我读过一些关于这个问题的文章，但我无法解决它。我使用了一些代码片段来查找问题，但仍然找不到问题所在

create.blade.php-

<h1>Create comment</h1>
{!! Form::open(['id' => 'myForm',  'enctype' => 'multipart/form-data']) !!}
<div class="form-group">
    {{ Form::textarea('body', '', ['class' => 'form-control', 'id' => 'article-ckeditor', 'placeholder' => 'Share your thoughts related to this post']) }}
</div>
{{ Form::hidden('post_id', $post->id) }}
{{Form::submit('Submit', ['class' => 'btn btn-primary', 'id' => 'submitComment'])}}
{!! Form::close() !!}

CommentsController@store-

public function store(Request $request)
{

    $validator = Validator::make($request->all(), [
        'body' => 'required'
    ]);

    if ($validator->fails()) {

        if($request->ajax())
        {
            return response()->json(array(
                'success' => false,
                'message' => 'There are incorect values in the form!',
                'errors' => $validator->getMessageBag()->toArray()
            ), 422);
        }
        $this->throwValidationException(

            $request, $validator

        );
    }

    // Create Post
    $comment = new Comment;

    $comment->body = $request->body;
    $comment->user_name = auth()->user()->name;
    $comment->post_id = $request->post_id;
    $comment->profile_picture = auth()->user()->profile_picture;

    $comment->save();

    return response()->json(['success'=>'Data is successfully added']);
    //return redirect()->back()->with('success', 'Comment Created');

---

检查错误日志以了解实际错误及其位置thrown@Nikola请发布你的错误。。。并检查您的laravel或更深入地挖掘服务器日志。。。

Route::resource('/comments', 'CommentsController');

public function store(Request $request)
{

    $validator = Validator::make($request->all(), [
        'body' => 'required'
    ]);

    if ($validator->fails()) {

        if($request->ajax())
        {
            return response()->json(array(
                'success' => false,
                'message' => 'There are incorect values in the form!',
                'errors' => $validator->getMessageBag()->toArray()
            ), 422);
        }
        $this->throwValidationException(

            $request, $validator

        );
    }

    // Create Post
    $comment = new Comment;

    $comment->body = $request->body;
    $comment->user_name = auth()->user()->name;
    $comment->post_id = $request->post_id;
    $comment->profile_picture = auth()->user()->profile_picture;

    $comment->save();

    return response()->json(['success'=>'Data is successfully added']);
    //return redirect()->back()->with('success', 'Comment Created');