Wordfence Autoupdating to v7.3.3 Breaking Websites

A number of our websites have crashed after WordFence auto-updated to the latest version.

2019/06/17 08:41:29 [error] 3052#3052: *102886 FastCGI sent in stderr: "PHP message: PHP Fatal error: Class 'ParagonIE_Sodium_Compat' not found in /[REDACTED]/plugins/wordfence/vendor/paragonie/sodium_compat/lib/constants.php on line 6" while reading response header from upstream, client: 0.0.0.0, server: example.com, request: "GET / HTTP/2.0", upstream: "fastcgi://unix:/var/run/php/php7.x-fpm.sock:", host: "www.example.com", referrer: "https://www.google.com/"