Duplicate entry & # 39; 1-Migration_Default & # 39; for the key

I encountered the following error while executing data migration a second time from 1.9.2.4 to 2.3.1

SQLSTATE[23000]: Violation of integrity constraint: 1062 Duplicate entry & # 39; 1-Migration_Default & # 39; for the key & # 39; EA
V_ATTRIBUTE_SET_ENTITY_TYPE_ID_ATTRIBUTE_SET_NAME & # 39;