When accessing Special:ContentTranslationStats while using the Timeless skin (skin version 0.8.9, Mediawiki version 1.34.2), the page appears blank outside of the user links (userpage, user talk, etc.). Here are the errors that show up in the console when I was trying to figure them out:
Skipped unresolvable module ext.cx.stats load.php:9:608
Exception in resolve: load.php:2:530
Error: Unknown module: jquery.uls.data
sortDependencies https://www.randomwiki.com/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=timeless:8 sortDependencies https://www.randomwiki.com/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=timeless:9 resolveStubbornly https://www.randomwiki.com/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=timeless:9 load https://www.randomwiki.com/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=timeless:20 <anonymous> https://www.randomwiki.com/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=timeless:43 <anonymous> https://www.randomwiki.com/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=timeless:43
load.php:2:567
JQMIGRATE: Migrate is installed with logging active, version 3.0.1 load.php:153:217
This page is using the deprecated ResourceLoader module "jquery.throttle-debounce".
Please use OO.ui.throttle/debounce instead. See https://phabricator.wikimedia.org/T213426