The template of "Springer Nature’s LaTeX" can be downloaded on: Download here
However, the bibliographic references do not appear with the bibtex. I ran the zipped version in overleaf. Can someone help me where I need to change so that I can generate the references using bibtex in this template?
The .bst files distributed in the .zip file are all contained in a bst folder. These files won't be found inside that folder when you upload everything to Overleaf. Instead, what you need to do is upload the specific .bst file you need directly into your project folder. Then it will be found correctly.
.bstfiles in thebstfolder won't be found by Overleaf. Try uploading the specific.bstfile you're using to your main folder in your project and see what happens. – Alan Munn May 17 '22 at 21:29