DNS config is not set for this domain or the domain is not a valid domain! (It was found to be set to '')

[An_Tr_n_Cao_B_o]

I purchased a domain name on Hostinger, then I created A record to point to my IP address, I also forwarded port 443, checked that port forward correctly.
Then when I typed in my domain name in AIO setup, got error

Can anyone help me

[wwe]

the error is clear… please check DNS records… maybe it’s simple timing issue like here: DNS config is not set for this domain or the domain is not a valid domain! (It was found to be set to ") · Issue #1960 · nextcloud/all-in-one · GitHub

[An_Tr_n_Cao_B_o]

I have waited for 10 hours and still not work

[szaimen]

Have you retarted the container and/od host? Sometimes is caching involved afaik