orctoprint plugin doesn't show ETA

[spitfire]

orctoprint plugin doesn't show ETA, instead it show ETE null

running the script in terminal shows:

hotend:?C  bed:?C | color=black
Refresh | refresh=true
octoprint:1.5.0 api:0.1 | color=green href=https://<my moonraker hostname>
(...)
---
print cancel  | color=red bash=/Users/mieszko/.swiftbar/octoprint.1m.sh param1=printstopcmd  terminal=true
---
jq: error (at <stdin>:1): Cannot iterate over null (null)

When I click on the menubar icon it is showing temperatures, api version, cam snapshot and cancel button.