Kiwiz API Configuration

Hello,

I need your help to find an invoice in the blockchain using the kiwiz API.
Do you think my GET request is correctly configured?
{“error”: “Blockchain”, “message”: “Block … not found”}

I first generated a token with my id, password and username as requested, then I set this token to Authorization.
Thanks for your help.
https://api.kiwiz.io/doc#

Are you sure you have the correct block_hash (file_hash is not the same thing)? If yes,
try to use https://api.kiwiz.io/invoice/get?block_hash=[block_hash]