I didn't ask to activate the extension, but to activate parameters of this extension that I can't modify myself.
I forgot to mention it, but https://www.tintinpedia.fr would also have to be used as the domain name.
This extension is enabled by default on all Miraheze wikis.
Please request a new wiki and go to Special:RequestImportDump on Meta after it has been created.
This seems to still be an issue on some files, for example this file.