See https://nl.wikipedia.beta.wmflabs.org/wiki/Speciaal:RecenteWijzigingen
Here's the backtrace:
[WkpKgApEE4AAAETZCFMAAAB4] /wiki/Speciaal:RecenteWijzigingen InvalidArgumentException from line 58 of /srv/mediawiki/php-master/extensions/ORES/includes/Storage/SqlModelLookup.php: No model available for [goodfaith] Backtrace: #0 /srv/mediawiki/php-master/extensions/ORES/includes/ThresholdLookup.php(94): ORES\Storage\SqlModelLookup->getModelVersion(string) #1 /srv/mediawiki/php-master/extensions/ORES/includes/ThresholdLookup.php(85): ORES\ThresholdLookup->fetchThresholdsFromCache(string) #2 /srv/mediawiki/php-master/extensions/ORES/includes/ThresholdLookup.php(75): ORES\ThresholdLookup->fetchThresholds(string, boolean) #3 /srv/mediawiki/php-master/extensions/ORES/includes/Hooks/ChangesListHooksHandler.php(241): ORES\ThresholdLookup->getThresholds(string) #4 /srv/mediawiki/php-master/includes/Hooks.php(177): ORES\Hooks\ChangesListHooksHandler::onChangesListSpecialPageStructuredFilters(SpecialRecentChanges) #5 /srv/mediawiki/php-master/includes/Hooks.php(205): Hooks::callHook(string, array, array, NULL) #6 /srv/mediawiki/php-master/includes/specialpage/ChangesListSpecialPage.php(911): Hooks::run(string, array) #7 /srv/mediawiki/php-master/includes/specials/SpecialRecentchanges.php(186): ChangesListSpecialPage->registerFilters() #8 /srv/mediawiki/php-master/includes/specialpage/ChangesListSpecialPage.php(1052): SpecialRecentChanges->registerFilters() #9 /srv/mediawiki/php-master/includes/specialpage/ChangesListSpecialPage.php(872): ChangesListSpecialPage->setup(NULL) #10 /srv/mediawiki/php-master/includes/specialpage/ChangesListSpecialPage.php(642): ChangesListSpecialPage->getOptions() #11 /srv/mediawiki/php-master/includes/specialpage/ChangesListSpecialPage.php(556): ChangesListSpecialPage->considerActionsForDefaultSavedQuery(NULL) #12 /srv/mediawiki/php-master/includes/specials/SpecialRecentchanges.php(168): ChangesListSpecialPage->execute(NULL) #13 /srv/mediawiki/php-master/includes/specialpage/SpecialPage.php(522): SpecialRecentChanges->execute(NULL) #14 /srv/mediawiki/php-master/includes/specialpage/SpecialPageFactory.php(578): SpecialPage->run(NULL) #15 /srv/mediawiki/php-master/includes/MediaWiki.php(288): SpecialPageFactory::executePath(Title, RequestContext) #16 /srv/mediawiki/php-master/includes/MediaWiki.php(852): MediaWiki->performRequest() #17 /srv/mediawiki/php-master/includes/MediaWiki.php(524): MediaWiki->main() #18 /srv/mediawiki/php-master/index.php(43): MediaWiki->run() #19 /srv/mediawiki/w/index.php(3): include(string) #20 {main}
It's reproducible 100% of the time. Don't know if this is really high on the priority list, but thought I would report it anyway.