The problem you mentioned, "Session data lost after redirection" is usually caused by the session not being able to store or retrieve data correctly. Here are some steps to fix this issue:

1. Check if sessions are enabled in your application. You can do this by checking the phpinfo() output, which should list all the modules loaded and configuration settings related to PHP. Look for a section called "Session". If you don't see it, then sessions may not be enabled in your PHP installation.

2. Check if session data is being written correctly. This can be done by checking if session variables are being set or modified during the request cycle. You can do this by using the var_dump() function to print out the current value of a session variable, or by using a debugging tool like Xdebug.

3. Check if there is any misconfiguration in your application that could be causing sessions not to work correctly. This may include issues with the server configuration, the PHP code itself, or the web server software. You can try disabling caching and other features that might interfere with session management, or trying to create a new session using Session::start() before starting any other operations.

4. Make sure that your application is not running on multiple instances of the same server, as this could cause session data loss if one instance tries to write to the session while another instance is reading it. You can try setting up a load balancer or using a shared database for session storage.

5. If none of these steps work, you may need to consider upgrading your PHP installation or switching to a different web server software that supports sessions better than Apache.