There is a formula defined for the column, earlier version there is no issues when using the field which is not in the data list. But since 2.7.11 I am getting the error as attached. Please check and let know the feasible solution.
Thank you for the question.
In case you need to disable the warning, please use a special option
Here is the sample: https://jsfiddle.net/flexmonster/wsjy05n7/
Please note, that the results of formulas with non-existing fields may be unexpected. We strongly recommend excluding such formulas from the reports (and the warning message can help to identify such formulas).
Hope you find this helpful.