hi,
i tried fresh install on debian 12 like 3 times so no way file manager working.
I ask and try many ways with chat gpt for force installation of file manager but no way always error 500.There any thing for solve this? why this is happening in a new installation? 
thnks
Hi,
Use this fix:
cd /usr/local/hestia/web/fm/backend/Services/Session/Adapters/
mv SessionStorage.php SessionStorage.php.ori
curl -fsSLm20 https://raw.githubusercontent.com/hestiacp/hestiacp/refs/heads/main/install/deb/filemanager/filegator/backend/Services/Session/Adapters/SessionStorage.php -o SessionStorage.php