Im am trying to load images in phaser with node js and i always get the same error

:3000/assets/img/feet/idle/survivor-idle_0.png:1 Failed to load resource: the server responded with a status of 404 (Not Found)

if you know a way to get this to work please tell me. here is my code:

preload() {
    // Used for preloading assets into your scene
    //Idle feet image
    this.load.image('idleFeetFrame', '/assets/img/feet/idle/survivor-idle_0.png');
}

(Updated from Comment) ... is my server code:

const express = require('express');
const app = express();
const server = app.listen(process.env.PORT || 3000);
app.use(express.static('./public'));
console.clear();
console.log('\x1b[36m%s\x1b[0m', 'Server started...\n');
const socket = require('socket.io');
const io = socket(server);
io.sockets.on('connection', handleConnection);

function handleConnection(socket) { console.log('Client: ' + socket.id + ' has connected.') }