This means that Aimtell hasn’t been installed completely and the Manifest file is missing.
How to fix:
Check to make sure you have installed the tracking code and upload the 2 required files to your website: (unifiedps-worker.js and unifiedps-manifest.json)
Download the 2 required files and upload them to your sites root directory. (this means they should be accessible at https://yoursite.com. ie https://yoursite.com/unifiedps-worker.js and https://yourwebsite.com/unifiedps-manifest.json)
Contact us at email@example.com