AxiosError: Request failed with status code 404 uisng React Native with MYSQL

i am gettig this error in my expo app where i am trying to post data from reactnative app to mysql database.Its working well while using postman,But while sending data from my expo app its showing erro like this: ERROR Error logging in: [AxiosError: Request failed with status code 404]

const handleRegistration = async () => {

    const userData = {
      firstName: firstName,
      lastName: lastName,
      phoneNumber: phoneNumber,
      email: email,
      password: password,
      occupation: occupation,
      selectedState: selectedState
    };
     
    try {
      const response = await axios.post('http://192.168.200.226:3000/register', userData);
  
      if (response.status === 200) {
        console.log('Data sent to server:', response.data);
        navigation.navigate('Login');
      } else {
          alert('Error inserting data. Please try again later.');
      }
    catch (error) {
      console.error('Error sending data to server:', error);
    }
  }

—

app.post('/register', (req, res) => {
    const { firstName, lastName, phoneNumber, email, password, occupation, selectedState } = req.body;
  
    // Check if user with same email or phone number already exists
    const checkQuery = 'SELECT * FROM users WHERE email = ? OR phoneNumber = ?';
    db.query(checkQuery, [email, phoneNumber], (err, result) => {
      if (err) {
        console.error('Error checking user data:', err);
        res.status(500).send('Error checking user data');
      } else {
        if (result.length > 0) {
          const existingUser = result[0];
          if (existingUser.email === email) {
            res.status(409).send('Email already exists');
          } else if (existingUser.phoneNumber === phoneNumber) {
            res.status(409).send('Phone number already exists');
          }
        } else {
          // No existing user with same email or phone number, proceed with registration
          const insertQuery = 'INSERT INTO users (firstName, lastName, phoneNumber, email, password, occupation, selectedState) VALUES (?, ?, ?, ?, ?, ?, ?)';
          db.query(insertQuery, [firstName, lastName, phoneNumber, email, password, occupation, selectedState], (err, result) => {
            if (err) {
              console.error('Error inserting data:', err);
              res.status(500).send('Error inserting data');
            } else {
              console.log('Data inserted successfully');
              res.status(200).send('Data inserted successfully');
            }
          });
        }
      }
    });
  });


const port = 3000;
const ipAddress = '192.168.200.226';

app.listen(port, ipAddress, () => {
  console.log(`Server is listening on http://${ipAddress}:${port}`);
});

with postman : enter image description here
from UI:enter image description here
how to solve this issue, how can i send data from the UI to Db`