Lite5 reboot then script run

Hi
i have two lite5. When i reboot the lite5,it runs the script. This is the log. How can i fix this error.

00:00:35 system,info router rebooted
00:00:41 script,info Starting_defconf_script_
00:00:46 system,info device changed
00:00:46 system,info device changed
00:00:46 system,info device changed
00:00:46 system,info pool default-dhcp added
00:00:46 system,info DHCP server defconf added
00:00:46 system,info dhcp network added
00:00:46 system,info address added
00:00:46 system,info dns changed
00:00:46 system,info static dns entry added
00:00:46 system,info dhcp client added
00:00:46 system,info interface list added
00:00:46 system,info interface list added
00:00:46 system,info interface list member added
00:00:46 system,info interface list member added
00:00:46 system,info nat rule added
00:00:47 system,info filter rule added
00:00:47 system,info filter rule added
00:00:47 system,info filter rule added
00:00:47 system,info filter rule added
00:00:47 system,info filter rule added
00:00:47 system,info filter rule added
00:00:47 system,info filter rule added
00:00:47 system,info filter rule added
00:00:47 system,info filter rule added
00:00:47 system,info filter rule added
00:00:47 system,info device changed
00:00:47 system,info mac-server interface changed
00:00:47 system,info mac winbox setting changed
00:00:47 system,info mac-server interface added
00:00:47 system,info mac winbox setting added
00:00:47 script,info Defconf_script_finished

Check on System > Scheduler if there is any script running at startup, then disable it.

If you are trying to reset the device remember to

system  reset-configuration  no-defaults=yes

there isn’t any script and when we reboot lite 5 comes with this script again. there isn’ta problem with reset configuration

Where do these devices come from? Is it possible they were customised by the reseller?

We have about 1800 lite 5 only 2 is do this. Reseller from Turkey.