Cannot Access www.ads-software.com for Installing Plugin

Hi, i recently finish my WordPress installation on my OpenBSD 7.3 server running on Nginx, PHP-7.4 and MariaDB but i got an error “An unexpected error occurred. Something may be wrong with www.ads-software.com or this server’s configuration. If you continue to have problems, please try the?support forums.” when i try to add plugins. Somehow my wp-admin cant access www.ads-software.com, i can install plugins manually by upload it, i try to check if it blocked by firewall but it is not

nslookup www.ads-software.com
Server:         108.61.10.10
Address:        108.61.10.10#53

Non-authoritative answer:
Name:   www.ads-software.com
Address: 198.143.164.252

ping www.ads-software.com
PING www.ads-software.com (198.143.164.252): 56 data bytes
64 bytes from 198.143.164.252: icmp_seq=0 ttl=48 time=251.734 ms
64 bytes from 198.143.164.252: icmp_seq=1 ttl=48 time=251.763 ms
^C

is my configuration somehow wrong? any help to fix it?

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