The following error regarding deleted/merged patient is display in XrayVision™ (XV):

This error message is displayed when working with a patient and is a result of either the patient being deleted, merged, or the loss of connectivity to the networked location of the patient database.
Network connectivity loss interferes with XV's ability to check the status of open patients with the patient database. Depending on when the network connectivity is lost, XV can sometimes be fooled by the operating system into believing that the indicated patient has been removed from the patient database.
If no one deleted or merged the patient, refer to the following Apteryx Knowledgebase article: HOWTO: Recover From Network Problems ("Someone has just deleted or merged the patient ..." Error Message)