If it helps, in our logs this was where it broke:
#0 include() called at [/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/waf.php:228]
#1 wfWAF->loadRules() called at [/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/waf.php:134]
#2 wfWAF->run() called at [/wp-content/plugins/wordfence/waf/bootstrap.php:282]
#3 include(/wp-content/plugins/wordfence/waf/bootstrap.php) called at [/wp-content/plugins/wordfence/wordfence.php:54]