Field ... cannot be set. It is not on the appropriate screen, or unknown fix
This article will guide you on how to deal with this kind of error that you might get when using Planning Poker estimation “Field 'customfield_10016' cannot be set. It is not on the appropriate screen, or unknown.“
To fix it go to affected issue that you wanted to estimate.
on right side choose “Find field”
then find missing field and follow instructions to add it to the screen. In my case it was Story point estimate.
Go to Issues in settings
Click Custom fields
Find your field by name
Click Associate to Screens
Add it to proper screen, in my case it was Default Screen.
After that issue should be fixed.