The switch had stopped or only is not responding to OV ???

Network management
1

Critical192.168.XXXXXXXXSW_XXXXXX_0alaOvSwitchDownSwitch has STOPPED responding to OmniVista: Couldn't send SNMP message (Timeout or Authentication Problem). Last up time: 9 days, 17:49:36.00Nov 28, 2019 8:58:02 pm