It would be easier for you to install the
Sby Loader Pack instead. You can download it
here. Assuming that you're still new to SDT, I recommend that you simply
delete and
replace your entire SDT folder with the contents of sby's pack.
You'll lose any custom characters that you've created, but you're guaranteed to get a working copy of Animtools. You can then re-create your custom characters and proceed to play the game.
We
could attempt to fix the specific problem that you've encountered, but it will be difficult due to translation and miscommunication.