ummary

The ActionLogPlugin throws multiple PHP warnings when attempting to access properties on null objects.

Steps to reproduce the issue

Navigate to Joomla administrator backend
Perform actions that trigger the ActionLog plugin
Multiple errors appear in PHP error logs

Expected result

No PHP warnings should be generated.

##Actual result
Multiple PHP warnings are logged.

System information

PHP Version: 8.4.8
Joomla Version: 5.3.2

Additional comments

Error Details:
PHP Warning: Attempt to read property "id" on null in /administrator/components/com_actionlogs/src/Plugin/ActionLogPlugin.php on line 75
PHP Warning: Attempt to read property "username" on null in /administrator/components/com_actionlogs/src/Plugin/ActionLogPlugin.php on line 79
PHP Warning: Attempt to read property "id" on null in /administrator/components/com_actionlogs/src/Plugin/ActionLogPlugin.php on line 83