It appears that the logmon probe is being used to monitor for the word "error" in the logs - which has cause the specific log to be in the following log:
HandleMessage: Insert Data - nimid: <> (xxx) table_id: xxxxx value= xxx.00 time: <> qos=QOS_MCS_PROFILECOUNT source=xx target=status: error
This shows us that we are inserting some data with following values:
QOS name: QOS_MCS_PROFILECOUNT
target: "status: error"
This message is not an error. This means there is a QOS being inserted, and the words "status: error" are just part of the QoS itself, because it is a QoS that counts status errors.
This is not an indication of anything being wrong or in an error state. It is just a coincidence the word "error" occurs inside this qos definition target.