### Is there an existing issue for this? - [x] I have searched the existing issues ### Current Behavior After update the Docker image I got the following error TypeError: dokuwiki\Parsing\ModeRegistry::__construct(): Argument #1 ($syntax) must be of type string, null given, called in /app/www/public/inc/parserutils.php on line 239 I'm not possible to access my DokuWiki ### Expected Behavior _No response_ ### Steps To Reproduce Start the image in an docker container on a Synology NAS ### Environment ```markdown - OS: - How docker service was installed: ``` ### CPU architecture arm64 ### Docker creation ```bash version: "3.7" services: dokuwiki: build: . container_name: dokuwiki environment: # - PUID=1000 # - PGID=1000 - TZ=Europe/Berlin stdin_open: true tty: true volumes: - /volume1/docker/dokuwiki/data:/usr/share/dokuwiki/data - /volume1/docker/dokuwiki/conf:/usr/share/dokuwiki/conf - /volume1/docker/dokuwiki/lib:/usr/share/dokuwiki/lib - /volume1/docker/dokuwiki/vendor:/usr/share/dokuwiki/vendor - /volume1/docker/dokuwiki/plugins:/usr/share/dokuwiki/lib/plugins ports: - 8080:80 - 8443:443 restart: unless-stopped ``` ### Container logs ```bash 2026/08/09 10:06:02 [error] 415#415: *9 FastCGI sent in stderr: "PHP message: PHP Warning: Undefined array key "hidewarnings" in /app/www/public/inc/ErrorHandler.php on line 169; PHP message: PHP Warning: Undefined array key "samesitecookie" in /app/www/public/inc/auth.php on line 1426; PHP message: PHP Warning: Undefined array key "hidewarnings" in /app/www/public/inc/ErrorHandler.php on line 169; PHP message: PHP Warning: Undefined array key "syntax" in /app/www/public/inc/parserutils.php on line 239" while reading response header from upstream, client: 172.17.0.1, server: _, request: "GET /dokuwiki HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "sfrcloudadv:8080" 2026/08/09 10:07:47 [error] 414#414: *13 FastCGI sent in stderr: "PHP message: PHP Warning: Undefined array key "hidewarnings" in /app/www/public/inc/ErrorHandler.php on line 169; PHP message: PHP Warning: Undefined array key "syntax" in /app/www/public/inc/parserutils.php on line 239" while reading response header from upstream, client: 172.17.0.1, server: _, request: "GET /dokuwiki HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "sfrcloudadv:8080" 2026/08/09 10:08:05 [error] 414#414: *13 FastCGI sent in stderr: "PHP message: PHP Warning: Undefined array key "hidewarnings" in /app/www/public/inc/ErrorHandler.php on line 169; PHP message: PHP Warning: Undefined array key "samesitecookie" in /app/www/public/inc/auth.php on line 545; PHP message: PHP Warning: Undefined array key "hidewarnings" in /app/www/public/inc/ErrorHandler.php on line 169; PHP message: PHP Warning: Undefined array key "syntax" in /app/www/public/inc/parserutils.php on line 239" while reading response header from upstream, client: 172.17.0.1, server: _, request: "GET /dokuwiki HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "sfrcloudadv:8080" 2026/08/09 10:09:14 [error] 415#415: *18 FastCGI sent in stderr: "PHP message: PHP Warning: Undefined array key "hidewarnings" in /app/www/public/inc/ErrorHandler.php on line 169; PHP message: PHP Warning: Undefined array key "samesitecookie" in /app/www/public/inc/auth.php on line 545; PHP message: PHP Warning: Undefined array key "hidewarnings" in /app/www/public/inc/ErrorHandler.php on line 169; PHP message: PHP Warning: Undefined array key "syntax" in /app/www/public/inc/parserutils.php on line 239" while reading response header from upstream, client: 172.17.0.1, server: _, request: "GET /dokuwiki HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "sfrcloudadv:8080" 2026/08/09 10:09:15 [error] 415#415: *18 FastCGI sent in stderr: "PHP message: PHP Warning: Undefined array key "hidewarnings" in /app/www/public/inc/ErrorHandler.php on line 169; PHP message: PHP Warning: Undefined array key "samesitecookie" in /app/www/public/inc/auth.php on line 545" while reading response header from upstream, client: 172.17.0.1, server: _, request: "GET /favicon.ico HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "sfrcloudadv:8080", referrer: "http://sfrcloudadv:8080/dokuwiki" ```