Downloaded. Not json: 500 - Request did not return bytes

Request did not return bytes

Request:

<Request at 0x71b217701850 method=GET uri=/fd/**********.xml?utm_source=ld246.com clientproto=HTTP/1.1>

Resource:

<prem.server.PremSite object at 0x71b21767fa90>

Value:

'Feed generator error: config of feed is empty'