JS Script injected but not working...

Hello,

I wanted to add an accordion to my site without adding a bulky plugin and so used https://www.w3schools.com/howto/howto_js_accordion.asp to help me and used a hook to inject the JS onto the page in question.

Their directions use an HTML button, GP already has it's HTML button so I just overrode the styling for the class 'accordion' but the script that actually gets the accordion to open and close didn't work.

So, I tested just using a 'div' instead of a button, as neither the script nor the styling mention the button and only the classes. But, I'm no further along. If I check the page source the script is there and the script works fine in the W3 sandbox just doesn't appear to work on my site.

The page in question is https://www.seoinmotion.com/services-local-seo-consultant/