$ foobillardplus 
Cosin Sine table lookup initialized
sqrt table lookup initialized
Check for Dialog-Program
Dialog Program zenity found
Foobillard++ seems not to be correctly installed
Cannot find valid data directory
(assuming the current directory contains the data)
Data dir entry
Browser initialized for history-functions
Player variables initialized
Use config-file: /home/<USERNAME>/.foobillardrc
Base-Configuration initialized
Configuration processed
Locale file not found: locale/en/foobillard.txt

ERROR: Cannot open language file - terminating.
===
^ Не находит файл локализации.