Aborted connection 4095975 to db: 'unconnected' user: 'unauthenticated' host: 'localhost' (This connection closed normally without authentication)

Check log_warnings value:

show global variables like '%log_warnings%';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| log_warnings  | 2     |
+---------------+-------+

set global log_warnings=1;

Update MySQL configuration "log_warnings = 1"