>>765
ありがとうございます
Ubuntu22.04LTSでした　ややこしくしてしまい申し訳ございません
nginxのaccess.logとerror.logはアクセスした際に次のように記録されていました
・/var/log/nginx/access.log
192.168.0.7 - - [29/Apr/2022:13:07:13 +0900] "GET /hogehoge/rep2/index.php HTTP/1.1" 500 5 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36"
192.168.0.7 - - [29/Apr/2022:13:18:08 +0900] "GET /hogehoge/rep2/index.php HTTP/1.1" 500 5 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36"

・/var/log/nginx/error.log
2022/04/29 13:18:08 [error] 2193#2193: *95 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Error: Non-static method Net_UserAgent_Mobile::singleton() cannot be called statically in /home/hoge/share/htdocs/hogehog/erep2/lib/bootstrap.php:159
Stack trace:
#0 /home/hoge/share/htdocs/hogehoge/conf/conf.inc.php(292): include()
#1 /home/hoge/share/htdocs/hogehoge/conf/conf.inc.php(53): p2_init()
#2 /home/hoge/share/htdocs/hogehoge/init.php(4): require('...')
#3 /home/hoge/share/htdocs/hogehoge/rep2/index.php(13): require_once('...')
#4 {main}
thrown in /home/hoge/share/htdocs/hogehoge/lib/bootstrap.php on line 159" while reading response header from upstream, client: 192.168.0.7, server: nantoka.nantoka.com, request: "GET /home/hoge/share/htdocs/hogehoge/index.php HTTP/1.1", upstream: "fastcgi://unix:/run/php/php8.1-fpm.sock:", host: "nantoka.nantoka.com"