ZIP files not working Pages

We have uploaded HTML5 ZIP Files and unzipped folder into the Workers and Pages section but thre issues occur:

  1. We get an error that says files over 25mb can’t be uploaded but they are uploaded anyways
  2. the page cannot be viewed, with links giving both 404 and DNS errors.

We seem to be following the correct instructions seen online, obviously taking the files given to us by an external vendor, but would appreciate any feedback.