Some answers, questions and suggestions:
1. How recent are those core dumps? How many of them do you have? Occasional crashes should not be of concern, but if you see them often recently, do go to TAC.
2. VS0, if only used for management purposes, should not bring this error. Most probably the tool is covering all VSs. Compare the numbers and act accordingly. I suspect a cosmetic issue, but it needs to be looked into.
3. A low and not growing number of errors should not raise a concern.
I would suggest to run HCP on a monthly basis or even more oftern.