Hi,
On my local Wiki (i.e., @localhost) I have Scribunto installed, and I
have copied several templates from Wikimedia Commons including
Template:Derivative versions
<https://commons.wikimedia.org/wiki/Template:Derivative_versions>,
Template:Autotranslate
<https://commons.wikimedia.org/wiki/Template:Autotranslate> and its Lua
dependency, Module:Fallback
<https://commons.wikimedia.org/wiki/Module:Fallback>. On my Wiki the
Template:Derivative versions page, is giving the script error:
Lua error in Module:Fallback at line 73: attempt to index a nil value.
Backtrace:
1. *(tail call)*: ?
2. *Module:Fallback:73
<http://localhost/mediawiki/index.php?title=Module:Fallback&action=edit#mw-ce-l73>*:
in function "fallbackpage"
3. *Module:Fallback:99
<http://localhost/mediawiki/index.php?title=Module:Fallback&action=edit#mw-ce-l99>*:
in function "chunk"
4. *mw.lua:497*: ?
5. *(tail call)*: ?
6. *[C]*: in function "xpcall"
7. *MWServer.lua:87*: in function "handleCall"
8. *MWServer.lua:301*: in function "dispatch"
9. *MWServer.lua:40*: in function "execute"
10. *mw_main.lua:7*: in main chunk
11. *[C]*: ?
Thanks for your time,
Brenton