Problems with my Roman Faction mod

[Quintus Dias]

According to http://www.twcenter.net/wiki/Descr_regions.txt
Culture/faction tag: The culture tag defines how loyal the people of the settlement will be to the faction that governs them. The people will less likely rebel to the faction that you put there (ex: Rome will less likely rebel against the Romans than against the Barbarians)

Well um, I did try out my mod with only one of the maxentius guys and he looked just like the Julii emperor, I mean he had his portrait, and I don't understand, not trying to be rude but how will I fix anything with from what you said? I already made Rome part of the Julii faction, deleted the senate, so um yea I've been getting this error: