Electron whitescreen without any elements - electron

Question

So I was working on an electron application for quite a while. Then suddenly when typing npm start into the console, it's just a white screen without any elements or scripts.
I think it doesn't load index.html properly, but there aren't any error messages. Before everything worked just fine.
I can't even use the JavaScript Console. When I type anything like
console.log("hello")
It just disappears and returns nothing after pressing Enter.
I don't remember changing anything.
This is my index.js file:
const { app, BrowserWindow, Menu } = require('electron');
const path = require('path');
const remoteMain = require('#electron/remote/main');
const fs = require('fs');
remoteMain.initialize();
if (require('electron-squirrel-startup')) {
app.quit();
}
const createWindow = () => {
const mainWindow = new BrowserWindow({
width: 1600,
height: 1000,
autoHideMenuBar: true,
webPreferences: {
nodeIntegration: true,
contextIsolation: false,
enableRemoteModule: true,
devTools: true,
preload: path.join(__dirname, 'preload.js')
},
});
mainWindow.setMenuBarVisibility(false)
mainWindow.setMenu(null)
mainWindow.on('closed', () => {
win = null
})
mainWindow.loadFile(path.join(__dirname, 'index.html'));
remoteMain.enable(mainWindow.webContents)
mainWindow.once('ready-to-show', () => {
mainWindow.show();
})
mainWindow.webContents.openDevTools()
setMainMenu(mainWindow)
};
app.on('ready', createWindow);
function setMainMenu(win) {
const template = [
{
label: 'Filter',
submenu: [
{
label: 'Hello',
accelerator: 'Shift+CmdOrCtrl+H',
click() {
console.log("dont")
}
},
{
label: 'Quit',
accelerator: 'Cmd+Q',
click() {
app.quit()
}
},
{
label: "Reload",
accelerator: "Cmd+R",
click() {
win.reload()
}
},
{
label: "Open dev tools",
accelerator: "f12",
click() {
win.openDevTools()
}
}
]
},
{
label: "Edit",
submenu: [
{ label: "Undo", accelerator: "CmdOrCtrl+Z", selector: "undo:" },
{ label: "Redo", accelerator: "Shift+CmdOrCtrl+Z", selector: "redo:" },
{ type: "separator" },
{ label: "Cut", accelerator: "CmdOrCtrl+X", selector: "cut:" },
{ label: "Copy", accelerator: "CmdOrCtrl+C", selector: "copy:" },
{ label: "Paste", accelerator: "CmdOrCtrl+V", selector: "paste:" },
{ label: "Select All", accelerator: "CmdOrCtrl+A", selector: "selectAll:" }
]}
];
Menu.setApplicationMenu(Menu.buildFromTemplate(template));
}
app.on('window-all-closed', () => {
if (process.platform !== 'darwin') {
app.quit();
}
});
app.on('activate', () => {
if (BrowserWindow.getAllWindows().length === 0) {
createWindow();
}
});