btcpayserver: [Bug]: LNbank throws error on invoice creation

What is your BTCPay version?

BTCPay v1.7.3.0 LNbank 1.3.8.0

How did you deploy BTCPay Server?

Extended manual setup. Using external LND.

What happened?

LNbank throws error on invoice creation

How did you encounter this bug?

When creating an invoice in LNbank, both through the BTCPay Server web app and through Zeus, I hit the following issue:

Invoice creation failed: Exception of type 'BTCPayServer.JsonHttpException' was thrown.

Revelant log output included.

Relevant log output

Dec 24 23:46:07 45-79-192-236 run.sh[12490]: System.OverflowException: Value was either too large or too small for an Int64.
Dec 24 23:46:07 45-79-192-236 run.sh[12490]:    at System.Decimal.ToInt64(Decimal d)
Dec 24 23:46:07 45-79-192-236 run.sh[12490]:    at NBitcoin.Money.Coins(Decimal coins)
Dec 24 23:46:07 45-79-192-236 run.sh[12490]:    at BTCPayServer.Services.Invoices.PaymentMethod.Calculate(Func`2 paymentPredicate)
Dec 24 23:46:07 45-79-192-236 run.sh[12490]:    at BTCPayServer.HostedServices.InvoiceWatcher.GetNearestClearedPayment(PaymentMethodDictionary allPaymentMethods, PaymentMethodAccounting& accounting) in /home/bitcoin/src/btcpayserver/BTCPayServer/HostedServices/InvoiceWatcher.cs:line 213
Dec 24 23:46:07 45-79-192-236 run.sh[12490]:    at BTCPayServer.HostedServices.InvoiceWatcher.UpdateInvoice(UpdateInvoiceContext context)
Dec 24 23:46:07 45-79-192-236 run.sh[12490]:    at BTCPayServer.HostedServices.InvoiceWatcher.StartLoop(CancellationToken cancellation) in /home/bitcoin/src/btcpayserver/BTCPayServer/HostedServices/InvoiceWatcher.cs:line 320

What browser do you use?

No response

Additional information

No response

Are you sure this is a bug report?

• I confirm this is a bug report