HELP, React not working in codepen

Hello all,

Can you help me?
Why is my React App not working in codepen?

Thanks, Oxana

You have two versions of react and two versions of react-dom. I recommend working with the development versions and remove the other two.

Once you fix that, take a look at the browser console and the errors showing there and see if you can resolve them first.

You are using a component that doesn’t exist. Maybe a typo?

Uncaught ReferenceError: IoMdPower is not defined

Line 205:
<button id="power_btn" style={this.state.powerStyle} className="power_btn" onClick={this.handleClickBtn.bind(this)}> <IoMdPower /> </button>

solved, thanks a lot!