Does ovobsloadobject has a process and is this process running ? Check via ovc -status.
The example I found was this. C:\Program Files\HP OpenView\lbin\obs\loadobject>ovobsloadobject -a system/openview -s localhost -x servicecall -m INSERT -l test.log -e error.log -c servicecall -v ID=1,DESC=test
Try this and change the -s and -a for your environment and check the error.log for the problem.