PI Log Entry: Problem during discovery: Discovery failed

Hi experts,

I have the following error in the PO log:

Problem during discovery: Discovery failed with unexpected error.

and

Application or service sap.com/tc~iv~core tried to access destination IV_SLD_ of type HTTP which does not currently

exist in the destination service. You can create destinations in the NWA under Configuration Management-Infrastructure-Destinations.

This destination is definitely not existing in our Java Destinations. I am wondering where this information is coming from, since our SLD connection is not to Solution Manager but to our PO Production system SLD. However we recently changed the conncetion from SolMan to the PO Production. Did we miss to change some other parameter for the Discovery job (which has to do with the Integration Visibility as far as I know).

Thanks for your help and Best Regards

Harald