Thread:Extension talk:Scribunto/Script error: The function you specified did not exist.

Running MW 1.22.6 and Scribunto REL1_22. I've imported the Navbox module and Template from Wikipedia and receive this red script error everywhere:

Script error: The function you specified did not exist.

I tried moving to the master branch, but it won't work with MW 1.22.6 and causes a Fatal Exception.

Is this because the Wikipedia templates and modules are to new to use with the version of MW and Scribunto I'm using?

Thanks.