i had the same problem as you, and if you used a tool to change any prices of items or anything in itematype.dat then all the tools have a bugs and they mess everything up, the best way to do it is hex edit it, and the even when the server files are different from the client files it doesn't matter because in all the different DB there are same skills(in EODB) and all itemtype.dat are made the same for any eo db.
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sorry for the sotory.!!!