The error details indicate that it cant find 'original' and 'enrichment' flowfiles. Those terms are setup and created by the FormEnrichment processor through its relationships:
enrichment & original.
Im not sure what your actual flow looks like and what are the actual source for each of the data sources but just using GenerateRecord for both dataset wont work because this processor cant take upstream relationship which doesnt apply to the pattern of using the Fork\JoinEnrichment processors. The link above will have an example that will help you understand how those processors work. If you need more help with your actual flow please provide more information on the actual scenario you have.