Reference
TERMINAL_READER_OFFLINE
Terminal reader is offline
Terminal reader is offline
HTTP status 409 Conflict, code TERMINAL_READER_OFFLINE.
What it means#
The provider could not reach the reader, or it did not answer in time. Nothing was charged.
What to do#
Check the reader is powered on and connected, then charge again, or take another tender.
On the wire#
Every error response carrying this code names this page in error.moreInfo,
with the request id in the query string. See Error codes for
the response shape and the list of every code.