reactjs - 如何修复错误代码：422（无法处理的实体）？

Question

我正在尝试将一部分添加到我的应用程序中，用户可以在其中更新他的个人资料信息。但是，当我点击“更新”时，错误代码：422（无法处理的实体）返回。我调查了它，但我不确定它的含义或如何解决它。下面是我的代码：

editUser(e) {
        e.preventDefault();
        const user = localStorage.getItem('user');
        const token = localStorage.getItem('token');
    
        axios.put(`https://myflix-by-jop.herokuapp.com/user/update/${user}`,
          {
            name: this.state.Name,
            username: this.state.Username,
            password: this.state.Password,
            email: this.state.Email,
            birthday: this.state.Birthday
          },
          {
            headers: { Authorization: `Bearer ${token}` }
          })
          .then((response) => {
            this.setState({
              name: reposnse.data.Name,
              username: response.data.Username,
              password: response.data.Password,
              email: response.data.Email,
              birthday: response.data.Birthday
            });
            localStorage.setItem('user', this.state.Username);
            const data = response.data;
            console.log(data);
            console.log(this.state.Username);
            alert("Profile updated.");
          })
          .catch(function (error) {
            console.log(error);
          })
      }

      setName(value) {
        this.state.Name = value;
      }

      setUsername(value) {
        this.state.Username = value;
      }
    
      setPassword(value) {
        this.state.Password = value;
      }
    
      setEmail(value) {
        this.state.Email = value;
      }
    
      setBirthday(value) {
        this.state.Birthday = value;
      }

如果您需要我提供更多代码，请告诉我！谢谢！