I had the same problem too but i think i manage to fix it ..
open up navicat ... and check that the Database that the instruction told you to make is the same with the last past of the conf ...
eg ..
CharacterDatabaseInfo = "127.0.0.1;3306;root;mangos;characters"
the word characters at the end should be the same as waht you see in ur Navicat. .. if it differs then change the name to fit wat is create in Navicat ... do it for all the configaration