Hi, i just move my internal dns server on cloudflare. I uploaded my configuration but i still have my old ns record pointing to my old location.
when i try to add my ns record with the data provided by clouflare. i got the following error.
"Content for ns record is invalid. ns record at the apex must not overwrite assigned nameservers(code:9221)
what can i do
Welcome to the Cloudflare Community. 
It sounds like you are trying to create NS records in Cloudflare for your apex name. You cannot do that. If you are importing a zone file, remove any NS records at the apex before attempting to import. If you are trying to add them by hand, don’t do that. Cloudflare manages the apex NS records automatically.
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