Sorry for the inconvenience, you are facing issues while using our template on your site. I have checked the site link that you shared with us. When I open it the menu color appears fine for me. Also, the toggle button does not only work on the homepage as you said because when I tested it, it worked perfectly fine on the entire site. As proof, I have recorded a video for you to check and understand better. Here is the video link: https://www.veed.io/view/6ba2f6d9-5435-4349-8881-eaadbc8b5da9?panel=share
Furthermore, Regarding the cache, the thing is I recommend you kindly disable the cache system until your site is in maintenance mode. To do this simply contact your service provider and ask them to flush the server cache and then disable the cache system.
I hope your issues will be resolved and you’ll get the desired results.