[Error] Invalid settings UNIT 001d PORT1_SNMP Hikvision Error_in_CMD-3 1 Generic 000029 Driver 00000258 (0x102)

HI,

in the log file I have this error. If I try to read a variable with SNMP, I display #BAD. 

The device is a camera (Hikvision). This camera has not public fields (OID start with '.1.3.6.1.2.1') but has only private field (OID start with '.1.3.6.1.4.1').

HELP ME. I don't understand, In the same project I already read other snmp variables of another device and it works.

Thanks