REST API returns ErrorCode 1001 "Invalid input" for Invoice/Create and Asset/List

Bug Reports
1

Hello, my Merchant Panel works and I can create invoices manually, but every REST API call from my server returns HTTP 400 with {"ErrorCode":1001,"ErrorMessage":"Invalid input."} .
I tested both Invoice/Create and Asset/List using my MerchantId and ApiSecret.
Asset/List was tested with OrderAmount: 1 and OrderCurrency: "USD" .
Could you confirm whether my API access/configuration is enabled and provide the exact current request format expected by the REST API?

2

Please provide your exact json request body and the exact endpoint.