Im trying to change the eligible start date of an element and trying to load using the HCM Data Load

Summary:

I need to change the eligible start date and percentage values .

Content (please ensure you mask any confidential information):

This was the dat filr I'm using .

METADATA	ElementEntry	SourceSystemOwner	SourceSystemId	AssignmentNumber	EffectiveStartDate	EffectiveEndDate	ElementName	LegislativeDataGroupName	MultipleEntryCount	EntryType	CreatorType	ReplaceLastEffectiveEndDate
MERGE	ElementEntry	LAWSON	1008_MISC_1	554987	1999/08/02	4712/12/31	Plan 403b Non-Elect ER Contribution	US Legislative Data Group	2	E	H	Y
METADATA	ElementEntryValue	SourceSystemOwner	SourceSystemId	ElementEntryId(SourceSystemId)	EffectiveStartDate	EffectiveEndDate	ElementName	LegislativeDataGroupName	MultipleEntryCount	AssignmentNumber	InputValueName	ScreenEntryValue
MERGE	ElementEntryValue	LAWSON	1008_MISC_1_AMOUNT	1008_MISC_1_AMOUNT	1999/08/02	4712/12/31	Plan 403b Non-Elect ER Contribution	US Legislative Data Group	1	554987	Eligible Start Date	2016/06/01

While trying to load these Im getting these type of errors.