opmanager critical error

opmanager critical error

opmanager isn't managing the network because of a crital error:
________

OpManager has detected that it has lost network connectivity and has suspended all monitoring. Monitoring will be automatically resumed once connectivity is established.
194.151.25.142
_________

the ip address is the old addres of the server. i don't want too reinstal the progam plz tel me how too fix this.






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