Beta ORES reports an overload condition: https://ores-beta.wmflabs.org/v3/scores/enwiki/123456
The Celery worker has been dying. Diagnose and correct for long-term stability.
According to logstash-beta, there are several exceptions being thrown on ORES.
[Wk@HawpEFhUAAEprrgMAAAAH] /rpc/RunSingleJob.php RuntimeException from line 96 of /srv/mediawiki/php-master/extensions/ORES/includes/Api.php: Failed to make ORES request to [https://ores-beta.wmflabs.org/v3/scores/enwiki/?models=damaging%7Cgoodfaith%7Cdraftquality&revids=375138&precache=1&format=json], There was a problem during the HTTP request: 503 SERVICE UNAVAILABLE