You need to upgrade your DLP OCR(Optical Character Recognition) server from an older version.
Any DLP OCR server version
There is no upgrader for the DLP OCR server. You have to uninstall the old version and then install the new version. To uninstall the OCR server simply run the uninstall.exe file located in the DLP server's root folder. DLP OCR server is only supported on Windows not Linux.