I am still getting this error message on my Mediawiki site:
http://www.physicswiki.net
Error: Module:Navbar:25: bad argument #1 to 'sub' (string expected, got
nil)
It pops up on the top of some boxes at the bottom of articles on some
pages. Seems to be related to LUA & Scribunto modules. I did not have
this until I installed those extensions. I see that they are required in
order for the templates that I download from Wikipedia and use on my
site.
Any ideas as to how to rid my site of this is appreciated.
Thanks
John