BibTeX does not have the right entry for preprints. This is a hack for producing the correct reference:
@booklet{EasyChair:13854,
author = {Tobias Hummel and Leon Martin and Andreas Henrich},
title = {Assessing the FAIRness of Software Repositories Using RDF and SHACL},
howpublished = {EasyChair Preprint 13854},
year = {EasyChair, 2024}}