DNS challenge: Client with the currently selected authenticator does not support any combination of challenges that will satisfy the CA

Thank you for your time!

I did what you way and now this happens:

Performing the following challenges:
http-01 challenge for kv.fleurworld.com
http-01 challenge for kv01.fleurworld.com
dns-01 challenge for fleurworld.com

Create a file containing just this data:

5bRWVdJiB1KAxB4IbQjxim77GIwyXinZdvtnvVhFrms.jaJiXToCPaddVsagXJBYAe0g_2cFzW6DhQXXGWGXy24

And make it available on your web server at this URL:

http://kv.fleurworld.com/.well-known/acme-challenge/5bRWVdJiB1KAxB4IbQjxim77GIwyXinZdvtnvVhFrms

However, I have no web server installed. How do I work around this?
I think there is some way to use a self hosted web server but I fear making a mess here. It’s a production server.