I haven't verified yet whether this affects production, but Beta has a long list of these errors.
2017-10-10 06:51:25 [WdxRygpEFhUAAG6BZfwAAAAT] deployment-videoscaler01 wikidatawiki 1.31.0-alpha exception ERROR: [WdxRygpEFhUAAG6BZfwAAAAT] /rpc/RunJobs.php?wiki=wikidatawiki&type=ORESFetchScoreJob&maxtime=30&maxmem=300M RuntimeException from line 172 of /srv/mediawiki/php-master/extensions/ORES/includes/Cache.php: No model available for [goodfaith] {"exception_id":"WdxRygpEFhUAAG6BZfwAAAAT","exception_url":"/rpc/RunJobs.php?wiki=wikidatawiki&type=ORESFetchScoreJob&maxtime=30&maxmem=300M","caught_by":"mwe_handler"} [Exception RuntimeException] (/srv/mediawiki/php-master/extensions/ORES/includes/Cache.php:172) No model available for [goodfaith] #0 /srv/mediawiki/php-master/extensions/ORES/includes/Cache.php(207): ORES\Cache->getModelId(string) #1 /srv/mediawiki/php-master/extensions/ORES/includes/Cache.php(49): ORES\Cache->processRevision(array, integer, array) #2 /srv/mediawiki/php-master/extensions/ORES/includes/FetchScoreJob.php(67): ORES\Cache->storeScores(array) #3 /srv/mediawiki/php-master/includes/jobqueue/JobRunner.php(295): ORES\FetchScoreJob->run() #4 /srv/mediawiki/php-master/includes/jobqueue/JobRunner.php(193): JobRunner->executeJob(ORES\FetchScoreJob, Wikimedia\Rdbms\LBFactoryMulti, BufferingStatsdDataFactory, integer) #5 /srv/mediawiki/rpc/RunJobs.php(47): JobRunner->run(array) #6 {main}
2017-10-10 06:52:07 [WdxgBQpEFhUAAFV3Cl0AAAAH] deployment-jobrunner02 wikidatawiki 1.31.0-alpha exception ERROR: [WdxgBQpEFhUAAFV3Cl0AAAAH] /rpc/RunJobs.php?wiki=wikidatawiki&type=ORESFetchScoreJob&maxtime=60&maxmem=300M RuntimeException from line 172 of /srv/mediawiki/php-master/extensions/ORES/includes/Cache.php: No model available for [goodfaith] {"exception_id":"WdxgBQpEFhUAAFV3Cl0AAAAH","exception_url":"/rpc/RunJobs.php?wiki=wikidatawiki&type=ORESFetchScoreJob&maxtime=60&maxmem=300M","caught_by":"mwe_handler"} [Exception RuntimeException] (/srv/mediawiki/php-master/extensions/ORES/includes/Cache.php:172) No model available for [goodfaith] #0 /srv/mediawiki/php-master/extensions/ORES/includes/Cache.php(207): ORES\Cache->getModelId(string) #1 /srv/mediawiki/php-master/extensions/ORES/includes/Cache.php(49): ORES\Cache->processRevision(array, integer, array) #2 /srv/mediawiki/php-master/extensions/ORES/includes/FetchScoreJob.php(72): ORES\Cache->storeScores(array) #3 /srv/mediawiki/php-master/includes/jobqueue/JobRunner.php(295): ORES\FetchScoreJob->run() #4 /srv/mediawiki/php-master/includes/jobqueue/JobRunner.php(193): JobRunner->executeJob(ORES\FetchScoreJob, Wikimedia\Rdbms\LBFactoryMulti, BufferingStatsdDataFactory, integer) #5 /srv/mediawiki/rpc/RunJobs.php(47): JobRunner->run(array) #6 {main}