See here: https://adraffy.github.io/ens-normalize.js/test/resolver.html#▚▚▚▚▘.eth
It’s invalid because that character ▘ is not allowed per the ENS normalization standard.
Looks like you registered that almost a year ago, so it may be on the list for refunds due to the normalization library changes: [TEMP CHECK] ENS invalid name refund proposal