DNS change error

I am trying to change from the DNS of my previous Host(OVH) to Cloudflare.
It is not working and I get this error message: You need to contact Cloudflare with that error and ask them to fix the problem for you. We can’t fix this error because these are external name server. This is the real error: Inconsistent set of NS RRs (NS, IP, NS host names) (harlee. ns . Cloudflare dot com, 2606:4700:50::a29f:26ee, [‘derek.ns.Cloudflare dot com’, 'harlee.ns.Cloudflare dot com

both are saying that they can’t do anything