It’s probably a catalog of taxes paid or owed. That is how writing was invented, to record taxes. Tax collecting is likely the second oldest profession.
I blieve most of the Linear B (Greek) sources are lists of commodities owed/collected as taxes, plus lists of officer assignments, eg, coast watchers, governors, etc. I do not believe any literary texts have been discovered on Linear B tablets.
Wasn’t it linear B that hasn’t been deciphered yet? Could be wrong, but one of the early Greek scripts to my knowledge (which is very amateur grade) has never been decoded.
I wonder how tax collecting can be the second oldest profession. I believe farming and sheep herding are (Cain and Abel).