I have been using bipartiteD3-package in latest version of R and R studio. Since a few weeks, the interactive bipartite graphs are not appearing. Instead, an error message is appearing in the console mentioning that it was not possible to open the URL ‘http://vizjs.org/viz.v1.1.0.min.js’.

After reading some tips, I downloaded the file viz.js to the R working directory, but RStudio is still showing the above-mentioned error.
Thanks in advance if someone can help me!