Hi There,
I came across this answer in another Q&A Forum post and the reason is that custom .financial TLD. Open Site Explorer does not currently support custom TLDs.
Moz Help Team Member's answer below:
"We don't currently support custom Top Level Domains (TLD) such as .photography - this would explain why there's no data for this site in our Index.
Sadly I don't know of a good workaround for this - it's a technical limitation of the tool. I know we plan to expand the list of TLDs we support, but I'm not sure what kind of timeframe we can expect before new TLDs will be supported. You can find the current list of TLDs that we do support here: https://publicsuffix.org/list/effective_tld_names.dat"
https://moz.com/community/q/my-domain-is-almost-3-years-old-with-a-lot-of-backlinks-but-my-pa-1-da-1
Hope that helps!