You may not have the correct program dictionaries. Have you recently installed an upgrade to Adagio Order Entry? What version are you currently running? I presume the current version 8.1D, because only this version has a 'Master' security group dictionary with the name you quoted in your post.

You may need to re-install Adagio OrderEntry. You probably should also contact your Adagio consultant in case some program files did not install properly in your most recent upgrade (ie didn't overwrite the previous program files).