错误：添加数据时，“请求失败，状态码为500”

Question

在添加带有图像的类别时出现500错误，使图像在表中为空，因此如果发生错误，我可以添加类别名称。在此代码中显示可能的错误或错误，请先感谢：

这是我的模板部分

             

        <div class="form-group">
            <label>Name</label>
            <input v-model="category.name" type="text" name="name" class="form-control">
        </div>
        <div class="form-group">
            <label>Image</label>
            <input type="file" class="form-control" @change="onChange" accept="image/*">
        </div>

        <div class="form-group">
            <div class="col-md-6">
                <input v-show="!edit" type="submit" class="btn btn-success btn-send" value="Add">
                <input v-show="edit" type="submit" class="btn btn-success btn-send" value="Edit">
            </div>
        </div>
    </div>
</div>

这是我的路线api

 Route::post('categories/store', function(Request $request){
    return Category::create(['name' => $request->input(['name']),
        ['image' => $request->input(['image'])],
        ['created_at' => $request->input(['created_at'])]
    ]);
 });

这是vue js脚本

<script>
    export default {
        data: function() {
            return {
                edit: false,
                list: [],
                category: {
                    id: '',
                    name: '',
                    image: '',
                    created_at: '',
                }
            }
        },
        mounted: function() {
            console.log('Category Component Loaded...');
            this.fetchCategoryList();
        },
        methods: {
            onChange(e) {
                console.log(e.target.files[0])
                var fileReader = new FileReader()
                fileReader.readAsDataURL(e.target.files[0])
                fileReader.upload = (e) => {
                    this.category.image = e.target.result
                }
                console.log(this.category)
            },
            createCategory: function() {
                console.log('Creating category...');
                let self = this;
                let params = Object.assign({}, self.category);
                axios.post('/api/categories/store', params)
                    .then(function() {
                        self.category.name = '';
                        self.category.image = '';
                        self.edit = false;
                        self.fetchCategoryList();
                    })
                    .catch(function(error) {
                        console.log(error);
                    });
            },