From some an Adobe script I found this, some new codes added... perhaps 5 years later someone cares
PRTK_EXIT_CODES = {
'1': "Arguments passed in command line are invalid.",
'14': "Unknown error",
'19': "The provXML is missing",
'20': "Loading of permanent activation grace failed (due to malformed xml, corrupt or missing Enigma data, or some other error)",
'21': "Unable to update PCF/SLCache",
'22': "Unable to open a PCF/SLCache session",
'23': "The prov.xml file contains invalid empty tag values",
'24': "Enigma data has serial number of a language different from that of installed product",
'25': "If no product is installed on the target machine or enigma data of serial number could not be decoded",
'26': "PCF file not found",
'27': "Unable to edit the prov.xml file",
'28': "Invalid prov.xml file specified",
'29': "No matching license found",
'30': "Action not initiated by an admin user",
'31': "Invalid locale specified",
'32': "Invalid SLConfig path",
'33': "Failed to find LEID for serial",
}