Error in process mocel while write to data store entity task

I'm doing document data extraction and using two CDT for that and have following error in the task "Write to data store entity : 

An error occurred while trying to write to the entity "POC2_invoicedetails" [id=8c106ba8-4e44-41c9-89c2-2190b74590d7@5544, type=POC2_invoicedetails (id=4354)] (data store: POC2_invoice_data_store). Details: javax.persistence.PersistenceException: org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): POC2InvoicedetailsDT7844: org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): POC2InvoicedetailsDT7844 Data: TypedValue[it=4354,v={<null>,5618,Invoice7,TIN222356195086,2022-12-15,Maharashtra,WQHNHRF,27,T216_Meghraj Fand,BigTree Entertainment Pvt Ltd,60.0,5.4,5.4,10.8,70.8,COMPLETE,{<null>,Avatar: The Way of Water (3D Hindi) (U/A) Convenience,999799,2,30.0,0.0,60.00,9 %,5.40,9 %,5.40,0,0.00,0 0.00,0 0.00,70.80}}]