We have a dev and test env in our organisation. I have a workflow in dev env which is change the status reason according to custom type field.
Ex-if type is of risk then in status reason is set to risk. Below is image of workflow.

After importing this workflow in test env when I tried to activate it was showing this error.

[View:/cfs-file/__key/communityserver-discussions-components-files/761/log.txt]