Describe the issue / Steps to reproduce:
Migrated from MediaWiki (EOF) to BlueSpice
Expected behavior:
A working site 
What was the error message/error log?
Included screenshots of old and new sites
System info:
Hello,
if you open it in a incognito browser tab is there the same issue?
Yes I have, had no luck
sorry for the delayed response.
can you check if all of the following packages are installed?
apache2 apt-transport-https apt-utils bzip2 composer cron curl dvipng g++ gcc git-core gnupg gnupg1 gnupg2 imagemagick jetty9 make mariadb-client mariadb-server memcached ocaml-nox make mariadb-client mariadb-server memcached ocaml-nox php-pear poppler-utils python3 screen sudo unzip vim wget librsvg2-bin php php-cli php-common php-curl php-gd php-intl php-ldap php-mbstring php-mysql php8.2-opcache php-sqlite3 php-xml php8.2-zip php-fpm
in addition make sure the following apache modules are ENABLED
a2enmod rewrite
a2enmod ssl
a2enmod rewrite ssl proxy proxy_fcgi setenvif http2 mpm_event
make sure this one is configured
a2enconf php8.2-fpm
also make sure the following are DISABLED
a2dismod php8.2
a2dismod mpm_prefork
also don’t forget to restart the apache2 service after these changes if there were any
I hope this helps
