Here I am again

When I create a new Stencyl font, the program generates a bitmap of it, with all chars, right? á, ç, ã, etc...
But I can't use in the dialogs. It compiles, but when comes to "write" the char, Stencyl gives me this:
TypeError: Error #1009: Não é possível acessar uma propriedade ou um método de uma referência de objeto nula.
at DialogFontInfo/getScaledImg()[D:\Stencyl_workspace\stencylworks\engine-extensions/dialog/src/DialogFontInfo.hx:254]
at DialogFont/createChar()[D:\Stencyl_workspace\stencylworks\engine-extensions/dialog/src/DialogFont.hx:76]
at DialogFont/getScaledChar()[D:\Stencyl_workspace\stencylworks\engine-extensions/dialog/src/DialogFont.hx:63]
at BitmapDataUtil$/drawChar()[D:\Stencyl_workspace\stencylworks\engine-extensions/dialog/src/BitmapDataUtil.hx:156]
at DialogBox/messageStep()[D:\Stencyl_workspace\stencylworks\engine-extensions/dialog/src/DialogBox.hx:378]
at DialogBox/update()[D:\Stencyl_workspace\stencylworks\engine-extensions/dialog/src/DialogBox.hx:507]
at Dialog/updateDialogBoxes()[D:\Stencyl_workspace\stencylworks\engine-extensions/dialog/src/Dialog.hx:392]
at Dialog/dialogUpdater()[D:\Stencyl_workspace\stencylworks\engine-extensions/dialog/src/Dialog.hx:149]
at com.stencyl::Engine$/invokeListeners2()[C:\Stencyl\plaf\haxe\lib/stencyl/1,00/com/stencyl/Engine.hx:4022]
at com.stencyl::Engine/update()[C:\Stencyl\plaf\haxe\lib/stencyl/1,00/com/stencyl/Engine.hx:2405]
at com.stencyl::Engine/postUpdate()[C:\Stencyl\plaf\haxe\lib/stencyl/1,00/com/stencyl/Engine.hx:2632]
at com.stencyl::Engine/onUpdate()[C:\Stencyl\plaf\haxe\lib/stencyl/1,00/com/stencyl/Engine.hx:2625]
I tried change my Windows Region configurations and different keyboard sets.
What I have to do?!
Ps: I'm from Brazil.