Overleaf on Twitter: "Could you send us details via https://t.co/s2j1iQ7tQ1 and we'll take a look. If it's a linked bib from Mendeley, you could try downloading the bib from their desktop app
Creating and Managing Bibliographies with BibTeX on Overleaf - Overleaf, Çevrimiçi LaTeX Editörü
bibtex command is incorrectly replaced by biber after update to 0.6.2 · Issue #765 · Hannah-Sten/TeXiFy-IDEA · GitHub
Biblatex no .bib inserted and no .bbl file created - using TeXnicCenter - TeX - LaTeX Stack Exchange