Why doesn't the redux-devtools-log-monitor module display?

Question

React

I have an input script main.js

import React from 'react';
import ReactDOM from 'react-dom';
import createDevTools from './containers/DevTools';

ReactDOM.render(
    <div>
        <p>Стартовая страница</p>
        <createDevTools />
    </div>,
    document.getElementById('main')
);

then monitor constructor

import React from 'react';
import {createDevTools} from 'redux-devtools';
import LogMonitor from 'redux-devtools-log-monitor';
import DockMonitor from 'redux-devtools-dock-monitor';

export default createDevTools(
    <DockMonitor toggleVisibilityKey='ctrl-h'
                 changePositionKey='ctrl-q'>
        <LogMonitor theme='tomorrow' />
    </DockMonitor>
);

I call the server with the following parameters
"webpack-devserver": "webpack-dev-server --debug --hot --devtool eval-source-map --output-pathinfo --watch --colors --inline --content- base public --port 8090 --host 0.0.0.0"
as a result, only the Start page is written on the page, and the monitor itself is not displayed. What could be wrong?