<div class="form-group">
<label for="landlordId">Landlord</label> <select
                                                class="form-control" id="landlordId" name="landlordId">
                                                <option value="">- Select Landlord -</option>
                                                <option th:each="l : ${landlordsList}"
                                                    th:value="${l.landlordId}" th:text="${l.name}"></option>
</select>
</div>

The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).
I got this error when i use this my backend is Spring MVC

I was Cheak all attributes matched with entity class i cannot get any change