Errors in the PHP File Manager warning

Hi everyone, I went to the file manager, and just went through the folders there. I learned these PHP warning errors. It doesn’t hurt to live, but it might be worth fixing.
My Nginx+PHP8.4 configuration

2025/07/13 16:14:52 [error] 593#0: *190 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "GET /fm/ HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/edit/web/?domain=nextcloud.angellive.ru&token=01c9d681d566622f4f4e7766f30406f8"
2025/07/13 16:14:52 [error] 593#0: *190 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "GET /fm/?r=/getconfig HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:14:53 [error] 593#0: *190 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "GET /fm/?r=/getuser HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:14:53 [error] 593#0: *190 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:15:06 [error] 593#0: *190 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/changedir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:15:36 [error] 593#0: *190 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/changedir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:16:00 [error] 593#0: *190 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/changedir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:16:23 [error] 593#0: *190 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/changedir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:16:33 [error] 593#0: *190 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:13 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:15 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:18 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:23 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:28 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:30 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:35 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:39 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:46 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:50 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:17:58 [error] 593#0: *205 FastCGI sent in stderr: "PHP message: PHP Warning:  ini_set(): Session ini settings cannot be changed when a session is active in /usr/local/hestia/web/fm/vendor/symfony/http-foundation/Session/Storage/Handler/NativeFileSessionHandler.php on line 53" while reading response header from upstream, client: 213.108.6.232, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/fm/"
2025/07/13 16:48:42 [error] 593#0: *217 FastCGI sent in stderr: "PHP message: PHP Warning:  Undefined array key "look" in /usr/local/hestia/web/inc/main.php on line 104" while reading response header from upstream, client: 213.108.6.232, server: _, request: "GET /list/user/ HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/list/backup/"
2025/07/13 17:36:33 [error] 593#0: *244 FastCGI sent in stderr: "PHP message: PHP Warning:  Undefined array key "look" in /usr/local/hestia/web/inc/main.php on line 104" while reading response header from upstream, client: 213.108.6.232, server: _, request: "GET /list/user/ HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/list/backup/"
2025/07/14 01:15:10 [error] 591#0: *2 FastCGI sent in stderr: "PHP message: PHP Warning:  Undefined array key "look" in /usr/local/hestia/web/inc/main.php on line 104" while reading response header from upstream, client: 45.137.188.186, server: _, request: "GET /list/user/ HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: "hestia.angellive.ru:2083", referrer: "https://hestia.angellive.ru:2083/list/web/"