I found netlink error but I dont know cause

0.0001% errors can be safely ignored

If that '1' is the third number in the line after the interface name in "diag netlink device list", it's the number of errors on receiving side. It could happen for many reasons, like when you unplug and replug it in. So most important thing is if the number increases. Just keep running the command repeatedly to see if it changes.

If stays as '1', I would call it good.

Toshi