Diagnosis
Expression '&V1&' &V2& '&V3&' contains a multiline container elementV4. however, a multiline container element is not allowed at thispoint.

Procedure
Correct the appropriate step in the workflow definition.
If you have already started a workflow, you can resume the suspendedworkflow execution using the function Restart after error
Select the workflow
Change from the work item display to change mode (Edit -> Change
)
Select Edit -> Restart after error.