It is possible and in some cases fairly normal to see the error messages noted depending upon the timing of them and whether it is able to subscribe following the instances seen. We'd really need so take a look at the complete log file but I should note that user names, domain names, system information, etc. are shown so I recommend "scrubbing" them out and just leaving generic substitute information like "DOMAIN\USER1" and "DOMAIN\USER2" etc. before posting.