Hi @akwankl
be aware that the data repair API @Jennifer_Dungan mentioned, does not come for free, so I would contact your Adobe customer care first.
It really depends on how much data you need to repair.
Otherwise, maybe it's worthwhile evaluating whether it is easier to set up a different data source importer with different props/evars/events, ditch your current ones and do a backfill with historic data if the cost for the data repair is too high.
Cheers
Björn
Cheers from Switzerland!