Map error when i edited.

[Arrish]

So i wanted to add Zao to my map, So my map was 8.50 and Zao was 8.54 so i downgraded the Zao map to 8.50 because i thought then it could combine with my 8.50 map so i added all and when i run server i get this error in console : FATAL: OTBM Loader [x:blabla, y:blabla.zblabla]Failed to create item . So i check what item it is in Zao and when i check with RME editor it not a item its only a red square just red nothing more, What can the problem be?
Please help me i give rep

Thanks in advance

 

[Sweddy]

you need new otbm i think, because Zao got new Sprites and items ect

 

[Arrish]

Where i get those new stuffs then? please help

 

[Sweddy]

umm, in newest TFS rev i suppose.
and u need to update map to 8.60 i think :S

Im not so good at this ;p

 

[Arrish]

I dont understand how to all this i need someone to explain to me or something please help