Dividing with non-numeric

[bojmaliev]

For some transactions, If they were declined we have self-closed CAPTURE_AMT tag which means It's isset but its empty.
Exception is thrown when we try to divide "" with 100.
My suggestion is to add: !empty when checking if it is isset

nestpay/src/NestpayApi.php

Line 345 in 80bdd6b

$paymentData[Payment::PROP_AMOUNT] = $responseParams['capture_amt'] / 100;