---

sudo tail -n 50 /var/log/nginx/xenforo_error.log
sudo: unable to resolve host xenforo-node: Name or service not known
2026/05/10 22:58:08 [error] 778#778: *2 directory index of "/var/www/xenforo/public/" is forbidden, client: 127.0.0.1, server: _, request: "GET / HTTP/1.1", host: "127.0.0.1:8080"
2026/05/10 22:58:13 [error] 778#778: *3 directory index of "/var/www/xenforo/public/" is forbidden, client: 127.0.0.1, server: _, request: "GET / HTTP/1.1", host: "127.0.0.1:8080"
2026/05/10 23:27:33 [error] 768#768: *1 directory index of "/var/www/xenforo/public/" is forbidden, client: 127.0.0.1, server: _, request: "HEAD / HTTP/1.1", host: "127.0.0.1:8080"
2026/05/11 00:07:04 [error] 1382#1382: *1 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught Error: Call to undefined function mb_internal_encoding() in /var/www/xenforo/src/XF.php:140
Stack trace:
#0 /var/www/xenforo/src/XF.php(114): XF::standardizeEnvironment()
#1 /var/www/xenforo/index.php(15): XF::start()
#2 {main}
  thrown in /var/www/xenforo/src/XF.php on line 140" while reading response header from upstream, client: 127.0.0.1, server: _, request: "HEAD / HTTP/1.1", upstream: "fastcgi://unix:/run/php/php8.4-fpm.sock:", host: "127.0.0.1:8080"
2026/05/11 00:46:17 [error] 8482#8482: *4 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught Error: Call to undefined function mb_internal_encoding() in /var/www/xenforo/src/XF.php:140
Stack trace:
#0 /var/www/xenforo/src/XF.php(114): XF::standardizeEnvironment()
#1 /var/www/xenforo/index.php(15): XF::start()
#2 {main}
  thrown in /var/www/xenforo/src/XF.php on line 140" while reading response header from upstream, client: 127.0.0.1, server: _, request: "HEAD / HTTP/1.1", upstream: "fastcgi://unix:/run/php/php8.4-fpm.sock:", host: "127.0.0.1:8080"
2026/05/11 01:27:54 [crit] 794#794: *3 connect() to unix:/run/php/php8.5-fpm.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: _, request: "HEAD / HTTP/1.1", upstream: "fastcgi://unix:/run/php/php8.5-fpm.sock:", host: "127.0.0.1:8080"
2026/05/11 01:31:25 [crit] 794#794: *5 connect() to unix:/run/php/php8.5-fpm.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: _, request: "HEAD / HTTP/1.1", upstream: "fastcgi://unix:/run/php/php8.5-fpm.sock:", host: "127.0.0.1:8080"