codeigniter 4 session or cache issue

Because it doe's not know where to find this 

PHP Code:

$cmsrDetails['customerID'] 


It's not in that method so where is it?

it is from session after login in.

Code:

$data['customerDetails'] = $cmsrDetails = session('customerData');

session have customer details including "customerID".
only latest messages are not showing.older database entries are showing in webpage.
if i delete it any old entries from db it still show on webpage.