Its a simple fix...
You can do it two ways:
1. Direct method: Go to options before logging in and choose all the models you want. But instead of hitting the 'next' button, hit your enter key. That will save them and you won't get the error.
2. Manual Method: Open your Windows Explorer and look for your EQ Directory (e.g., c:/Program Files/EQ/ by default). Look for EQCLIENT.INI file.
(Or you can do a search on your computer, click START, RUN type EQCLIENT.INI and click OK)
Change all the following to TRUE (as shown below):
UseLuclinHumanMale=TRUE
UseLuclinHumanFemale=TRUE
UseLuclinBarbarianMale=TRUE
UseLuclinBarbarianFemale=TRUE
UseLuclinEruditeMale=TRUE
UseLuclinEruditeFemale=TRUE
UseLuclinWoodElfMale=TRUE
UseLuclinWoodElfFemale=TRUE
UseLuclinHighElfMale=TRUE
UseLuclinHighElfFemale=TRUE
UseLuclinDarkElfMale=TRUE
UseLuclinDarkElfFemale=TRUE
UseLuclinHalfElfMale=TRUE
UseLuclinHalfElfFemale=TRUE
UseLuclinDwarfMale=TRUE
UseLuclinDwarfFemale=TRUE
UseLuclinTrollMale=TRUE
UseLuclinTrollFemale=TRUE
UseLuclinOgreMale=TRUE
UseLuclinOgreFemale=TRUE
UseLuclinHalflingMale=TRUE
UseLuclinHalflingFemale=TRUE
UseLuclinGnomeMale=TRUE
UseLuclinGnomeFemale=TRUE
UseLuclinIksarMale=TRUE
UseLuclinIksarFemale=TRUE
UseLuclinVahShirMale=TRUE
UseLuclinVahShirFemale=TRUE
UseLuclinElementals=TRUE
Once your done, click FILE and then SAVE and you should all set.