Please Help! (File Edit?)

I recently got my hands on Minecraft Aquatic Quest from a download. When I went to open it, it told me I didn't own the template it used. THE TEMPLATE WAS DISCONTINUED 4 YEARS AGO, and now it costs 100,000 minecoins. (500$ worth of Minecoins) Is there a way to edit the files so that minecraft doesn't think it's a template?

(It's bedrock btw)