Error during import

I'm trying to import data from a CSV and from 150 identities I have 57 issues:

"Error during execution of 'OnGenerate' in logic module 'VI.DB.Entities.EvetsEntityLogic'

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Error during execution of 'OnGenerate' in logic module 'VI.DB.Entities.EventsEntityLogic'.
Error generating processes for event Update.
Error executing script 'Event_Update'.
Error generation process step event UPDATE.
Method not found: 'Void VI.DB.Scripting.ScriptBase.set_Entity(VI.DB.Entities.IEntity)'.

Please could anyone help me?

Thank you in advance.