There is a sudden "500 internal server error" on some of my tools. I boiled this one:
https://tools.wmflabs.org/wikidata-todo/beacon.php
down to bare-bone test:
<?PHP
header('Content-type: text/plain; charset=UTF-8');
print "!" ;
?>
Still 500 error. This apparently happens since at least11:00 UTC today.
Restarted webservice, no avail. Both kubernetes and gridengine.