I take you saw this blog  http://www.netzgoetter.net/internet/blogs/netzgoetter.nsf/dx/new-ibm-traveler-command-tablerepair.htm?opendocument&comments

I found this as well http://www.ibm.com/support/knowledgecenter/SSYRPW_9.0.1/UpdatingTheEnterpriseDatabase.html

Perhaps the schema did not get upgraded and you might need to do it manually

Otherwise you should open a pmr.   Please report back what the fix was.

I think I'm going to have to open a PMR.

I don't even have the notes.ini entry they refer to in the first line, and then it goes on to refer to High Availability server

This will have to wait until next week.

I discovered  similar topic at German forum atnotes.de http://atnotes.de/index.php/topic,60514.msg388102.html#msg388102

LO90926: STANDALONE TRAVELER SERVERS WITH INCORRECT DATABASE SCHEMA NEED AN ADDITIONAL SCHEMA MANAGEMENT METHOD FROM THE TRAVELER SERVER.

And I've got a fix via PMR. I've install it in 2-3 days.

http://www.netzgoetter.net/internet/blogs/netzgoetter.nsf/dx/hotfix-via-pmr-available-for-traveler-9.0.1.15-standalone-issue.htm