Cloudflare re-directing to old site

(will use fake sites for examples)

Have had my domain registered on GoDaddy for a couple of years:

coolsite.com

Created a Synology Reverse Proxy address for a self-hosted app:

coolapp.coolnas.synology.me

I had GoDaddy DNS forward coolsite.com to coolapp.coolnas.synology.me

Recently, I wanted to make the switch to Cloudflare to handle my DNS.

Before I changed my nameservers on GoDaddy, I deleted the aforementioned DNS forwarding. Once deleted, I changed the GoDaddy nameservers to the Cloudflare-provided ones.

I set up a Zero-Trust tunnel for that same self-hosted app and had it referenced as coolapp.coolsite.com, which directly connects to the app itself, so my Synology Reverse Proxy is no longer needed.

However, when I go to coolsite.com, it still redirects to coolapp.coolnas.synology.me.

I would like coolsite.com to load (not redirect) newhome.coolnas.synology.me.

There is no reference to coolapp.coolnas.synology.me on Cloudflare, so I’m confused as to why it’s still there. GoDaddy says it’s a Cloudflare issue now.

I’m new to this, so apologies if this doesn’t make complete sense.

How do I fix?

Thanks!