500 Server Error after successfull installation

Hey there,
So I managed to install and configure InvoiceNinja on my VPS server. But I get a 500: Server error when I visit the url. With the only error message cropping up in the laravel.log in storage/logs

[2022-09-02 19:35:37] production.ERROR: file_put_contents(/var/www/clients/client4/web9/web/finance/storage/framework/cache/data/9b/20/9b20934eac1c5157c6350b983215466eb38d5289): Failed to open stream: No such file or directory {"exception":"[object] (ErrorException(code: 0): file_put_contents(/var/www/clients/client4/web9/web/finance/storage/framework/cache/data/9b/20/9b20934eac1c5157c6350b983215466eb38d5289): Failed to open stream: No such file or directory at /var/www/clients/client4/web9/web/finance/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:190)
[stacktrace]

Not entirely sure that’s the cause of the 500 error, but it’s the only error I could find in any log whatsoever. Sometimes the login page shows up properly, but when I enter my credentials and click login, I get the 500 server error.

sounds like a permissions issue.

try

sudo chown -R www-data:www-data storage
```

assuming www-data is your web user.

Sounds correct. Much appreciated for the assist.