logrotate: ALERT exited abnormally with 
logrotate: error: failed to open config file sdnlogs: No such file or directory
These logs are shown frequently. After I googling, it might be a kernel issue. But, I don't know what to access LMOS's kernel.
Firmware version is 220.127.116.1102.
Please let me know the way to access kemp's kernel or the way to solve the problem.
Thanks in advance