OAI.php and OAI2.php doesn't pass BASE validation

[motorcyclist1]

All versions of Slims doesn't pass BASE OAI validation for including to BASE database
test in the website:
http://oval.base-search.net

the SLIMS library --> http://lib.smklabor.sch.id/oai2.php?verb=ListRecords&metadataPrefix=oai_dc

there are several errors
ERROR: Identify response well-formed but invalid: Element '{http://www.openarchives.org/OAI/2.0/}earliestDatestamp': This element is not expected. Expected is ( {http://www.openarchives.org/OAI/2.0/}adminEmail )., line 9
ERROR: ListRecords response well-formed but invalid: Element '{http://purl.org/dc/elements/1.1/}identifier_isbn': This element is not expected., line 22
ERROR: No incremental harvesting (full granularity) of ListRecords: Harvest for reference date 2017-01-13T09:00:28Z returned no records. Please make sure that the from and until parameters are evaluated.

Thus, a SLIMS can't be included in BASE database.... :(
Can anybody fix the code???
Thanks!!