I totally missed this post until just now...in the future don't be afraid to post a "bump" post if it has been more than a couple of days!
At any rate, it looks as though you have loaded a more recent version of the DDT but didn't update the StrataFrame structures. Also, you will need to re-create your packages once the new update is installed as well as some of the column structures have changed. It should be pretty straight forward:
Software Developer
Occupational Health Research