[BUG] Error banner "Cannot return null for non-nullable field PayInvoice.is_confirmed" keysend payment

[twofaktor]

Describe the problem/bug
After making a keysend payment, Thunderhub shows an error banner: "Cannot return null for non-nullable field PayInvoice.is_confirmed" in addition to the successful banner

Your environment

• Version of ThunderHub: 0.13.24
• Deployment method: npm install
• Other relevant environment details: Ubuntu Server amd64

To Reproduce
Steps to reproduce the behavior:

1. Send keysend payment
2. The following error banner at the same time other one with successful confirmation:

Expected behavior
No error banner

Actual behavior
Error banner + successful banner

What is the reason for this error banner? Could it be deleted so it doesn't come out?