nginx fpm.sock error

I have run into several errors with a site (but solely when accessed by Internet Explorer it seems. Here is the following Nginx error log:

2020/12/07 13:45:06 [error] 192900#192900: *9588 access forbidden by rule, client: 91.241.19.84, server: XXX, request: "POST /mifs/.;/services/LogService HTTP/1.1", host: "XXX", referrer: "https://XXX>
</Util/PHP/eval-stdin.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.4-fpm.sock:", host: "XXX"
2020/12/07 13:45:12 [error] 192900#192900: *9596 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 91.241.19.84, server: XXX, request: "POST /vendor/phpunit/phpunit/src/Util/>
<Util/PHP/eval-stdin.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.4-fpm.sock:", host: "XXX"

2020/12/07 13:45:14 [error] 192900#192900: *9599 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 91.241.19.84, server: XXX, request: "GET /vendor/phpunit/phpunit/src/Util/P<Util/PHP/eval-stdin.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.4-fpm.sock:", host: "XXX"

2020/12/07 13:47:36 [error] 192900#192900: *9606 access forbidden by rule, client: 193.169.252.34, server: XXX, request: "GET /.env HTTP/1.1", host: "XXX", referrer: "https://www.google.com/"

I’m running Ubuntu 20.04. I’d appreciate any and all help, I’ve never had an issue like this before and I’m stuck as to where to begin.

Thanks