Django/Python expert to fix a bug

Job ID: 32106492

Budget: $20 – $50 USD

DJANGO Server / Using GraphQL.

"API request failed"
Unknown error. HTTP Status code: 400

2/Call send notification API "when sending a message."
we use ONESIGNAL to send notification for each chat .
- when We send message from the android App it is working well: "notification and sounds" ALL OKay
BUT
- when WE SEND message from the "admin panel" to the "Android App": user on mobile app receives messages without Notification and sounds