I've checked it. Your minibits lightning address returned error because you had dozens of unpaid not yet expired invoices (likely never paid zaps) and they hit the limit set as a dos attack precaution.
I've increased the limit few times up, so should not be an issue anymore.
Is there a way we can create invoices that expire? For zaps, the invoices should be really short term.
I used to have 30 min expiry on minibits mint when used lnbits as a node middleware but now the mint is directly integrated to lnd with their 24h default.
Raised an issue to nutshell to enable to set custom expiry but not yet implemented afaik.
That's why I raised significantly the unpaid invoices dos limit per address yesterday.
