Allowed memory size of 301989888 bytes exhausted

Folgendes taucht bei uns gerade sehr häufig im Log auf:

2022/03/17 20:45:26 [error] 1356240#1356240: *54289647 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Allowed memory size of 301989888 bytes exhausted (tried to allocate 262144 bytes) in /srv/studip_git/public/plugins_packages/data-quest/FszNotenVerwaltungPlugin/FszNotenVerwaltung.class.php on line 150
PHP message: PHP Fatal error:  Allowed memory size of 301989888 bytes exhausted (tried to allocate 262144 bytes) in Unknown on line 0" while reading response header from upstream, client: , server: studip.uni-hannover.de, request: "GET /plugins.php/fsznotenverwaltungplugin/show?cid=b414b7b8714f5c117421108bcb758bce&action=main HTTP/2.0", upstream: "fastcgi://unix:/run/php/php-fpm-studip.sock:", host: "studip.uni-hannover.de", referrer: "https://studip.uni-hannover.de/dispatch.php/course/plus/index?cid=b414b7b8714f5c117421108bcb758bce"