I'm getting this error when using the Imbox template imported from this page (Template:Imbox). Aso in the template page itself I'm getting this other error:
Lua error in package.lua at line 80: module 'Module:Category handler/data' not found.
I have mediawiki 1.29.1 with Scribunto REL1_29.
I have exported these modules from the MediaWiki page and imported them to mine, they exist and their pages work, yet I still get these errors. This is how I exported them to import them after in my wiki's Special:Import page: https://www.mediawiki.org/wiki/Special:Export?pages=Template:Imbox%0aModule:Message_box%0aModule:Message_box/configuration%0aModule:No_globals%0aModule:Category_handler%0aModule:Yesno%0aModule:Arguments%0aModule:Category_handler/data&curonly=1&wpExportTemplates=1&wpDownload=1
Basically the problem is that the modules exist but I get an error saying they cannot be found. Any ideas on why is this happening and how to correct it?