BOT Throwing Error in Enterprise edition

Hi,
We have enterprise edition 2019.4.5 installed on server.
we got below issue when we execute the work flow.Sample workflow with message box was executed successfully.
we are doing Citrix automation in the workflow.
Any one can guide why this below issue occurs

@ndivya Its because of Backward compatibility. Update all the packages,robots which you used.And then replace the activities with new activites.Then publish.

Is it necessary to replace activities again? only if we update packages whether it will not be sufficient.

Trial and error… Did it help?

Yes,Thanks for help.