3D FlipBook - I have bought new subscriptions, its not working very annoying

I recently purchased a new subscription, and after extracting the zip file, I tried running the index file in the browser, but it isn't working. I'm using .NET MVC, and even tried running it there without success. It's really frustrating, as even the sample project isn't working.

https://localhost:44308/tess/templates/default-book-view.html 404 (Not Found) s.XMLHttpRequest.send @ requests.js:1 (anonymous) @ vi-tr.js:1 send @ jquery.min.js:2 ajax @ jquery.min.js:2 (anonymous) @ 3dflipbook.min.js:1 (anonymous) @ 3dflipbook.min.js:1 (anonymous) @ 3dflipbook.min.js:1 View.loadFiles @ 3dflipbook.min.js:1 build @ 3dflipbook.min.js:1 dispatch @ jquery.min.js:2 v.handle @ jquery.min.js:2Understand this errorAI 3dflipbook.min.js:1 {readyState: 4, getResponseHeader: ƒ, getAllResponseHeaders: ƒ, setRequestHeader: ƒ, overrideMimeType: ƒ, …} (anonymous) @ 3dflipbook.min.js:1 Promise.catch build @ 3dflipbook.min.js:1 dispatch @ jquery.min.js:2 v.handle @ jquery.min.js:2Understand this errorAI requests.js:1

       GET https://localhost:44308/tess/css/black-book-view.css 404 (Not Found)

s.XMLHttpRequest.send @ requests.js:1 (anonymous) @ vi-tr.js:1 send @ jquery.min.js:2 ajax @ jquery.min.js:2 (anonymous) @ 3dflipbook.min.js:1 (anonymous) @ 3dflipbook.min.js:1 (anonymous) @ 3dflipbook.min.js:1 View.loadFiles @ 3dflipbook.min.js:1 build @ 3dflipbook.min.js:1 dispatch @ jquery.min.js:2 v.handle @ jquery.min.js:2Understand this errorAI requests.js:1

       GET https://localhost:44308/tess/js/default-book-view.js 404 (Not Found)