@ArnoSaxena (because it seems like you maintained the mod lately)
Mod version 1.7.0
Added german translation file
There are typos in the original en_US.lang file that causes the item name in-game shown as "item.guidebook.name" and the putInWorkbench translation shown as "guidebook.putInWorkbench" .
I worked around it by changing the variable name in the translation files to match the variable name in the source code.
@ArnoSaxena (because it seems like you maintained the mod lately)
Mod version 1.7.0
This should be fixed in the source code instead!