In Zotero, there is a 'language' field which is filled out with the appropriate languages of the bibliography item. However, it is shown as such in the bibliography. I think it would be better to omit. Is there another way to remove the language from the bibliography then to delete the field in Zotero?
\usepackage[
style=authoryear-ibid,
maxnames=2,
backend=biber,
safeinputenc,
isbn=false,
doi=false,
maxcitenames=2
]{biblatex}
and at the end of the document:
\printbibliography[heading=bibintoc]
.bib
entry that shows how you are generating the bibliography. Without that, there's no way to answer your question..bib
file entry either.