Help with Revolution Slider

I’ve tried and tried to log in but there is an issue on their site. I’ve tried all the troubleshooting I can. I’m hoping someone here can help.

I bought the direct purchase slider after having had a packaged one on my site that, at least, worked. Now it’s disappeared. If you mouse over the arrows you can see the slider pages.

Here is my website. https://training4teachers.com. I’m up to date on all plugins.

You can purchase one of my services at Studio