browser error does not find the URL to ckfinder.html

Question

I downloaded ckeditor with built-in ckfinder then put it in wwwroot . I configured Config.js of ckditor as follows

CKEDITOR.editorConfig = function (config) {
    config.sytaxhighlight_lang = 'csharp';
    config.sytaxhighlight_hideControls = true;
    config.language = 'vi';
    config.filebrowserBrowseUrl = '/ckeditor/ckfinder/ckfinder.html';
    config.filebrowserImageBrowseUrl = '/ckeditor/ckfinder/ckfinder.html?type=Images';
    config.filebrowserFlashBrowseUrl = '/ckeditor/ckfinder/ckfinder.html?type=Flash';
    config.filebrowserUploadUrl = '/ckeditor/ckfinder/core/connecto/php/connector.php?command=QuickUpload&type=Files';
    config.filebrowserImageUploadUrl = '/ckeditor/ckfinder/core/connector/php/connector.php?command=QuickUpload&type=Images';
    config.filebrowserFlashUploadUrl = '/ckeditor/ckfinder/core/connector/php/connector.php?command=QuickUpload&type=Flash';

    CKFinder.setupCKEditor(null, '~/ckeditor/ckfinder/')
};

and in the config file.php of ckfinder . I edited baseUrl as follows

$config['backends'][] = array(
    'name'         => 'default',
    'adapter'      => 'local',
    'baseUrl'      => '/upload/post/', // file upload
    //  'root'         => '', // Can be used to explicitly set the CKFinder user files directory.
    'chmodFiles'   => 0777,
    'chmodFolders' => 0755,
    'filesystemEncoding' => 'UTF-8',
);

in the view file I used it as follows

            <div class="form-group">
                <label asp-for="Content" class="control-label"></label>
                <textarea id="editor" asp-for="Content" class="form-control"></textarea>
                <span asp-validation-for="Content" class="text-danger"></span>
            </div>
            <script>
                var editor = CKEDITOR.replace('editor' , {
                    customConfig: '/ckeditor/config.js',
                })
            </script>

Above is the view page with the relative url Admin/Posts/ . when I press a few icons to load photos to browse on the server . did my browser not find URl /Admin/Posts/ckeditor/ckfinder/ckfinder.html? . this is a ckeditor file with built-in ckfinder that I downloaded

Please tell me what might be the cause.