Why isn't my mobile menu opening on debut theme?

Hi, I’m using debut theme, which I really like, but shopify says that it stopped supporting it, though I only downloaded it a year ago. They told me to use an app on my store, thewhitemall.com.au to get the menu to display and click, with a trouble with nesting that wasn’t working on the native theme. So, I download qikify which I really like; but the menu still isn’t clicking open on mobile, which is the same as it was doing beforehand on shopify. They told me to contact shopify to get it fixed as it’s do with their end, menu opening… Shopify big surprise told me to contact them to use an app to override their code, I explained that they told me to contact them that it was a problem on their end (with the original theme menu not opening/working). Please help. Just a few snippets or something to get my mobile menu to display properly.

Hi @778
Thank you for your question.
Please share your store URL, page URL and also password (if your store has one) so we can help you.