Php findByEmail

Any reason why $infusionsoft->contacts->findByEmail() would suddenly fail after months of no issues? Has there been an update?

Code:

$contacts = $infusionsoft->contacts->findByEmail($array[4], array());

Ha! Just found out my client cancelled their Infusionsoft account which would explain it. Apologies.

In the future I think we return a special error response when the account is no longer active. You might be able to identify an account was cancelled automatically.