Cookie Consent App Preview won't work on our domain

Cookie Consent Cloudflare App will not show preview for our website. It prompts “An error occurred as we tried to bundle your apps to create a preview. Please contact support for assistance.” I need to place the cookie notice on our website. I have reached out to support and they are taking so long that they referred me to the community. I have tried two different Cookie Consents from the Explore apps in the Cloudflare area and neither of them will work. I have tried and nothing previews. Please assist as I would like to test this for our domain but am not finding things to promising at the moment. Thank you!