I removed the component and reinstalled it
when i place the greek.php file in the language folder, and i go to language manager in joomla, i get this error:
Send exception, please write to admin for language check: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' 13, 'Greek'
' at line 1 SQL=INSERT INTO uaz32_booklibrary_const_languages (fk_constid,fk_languagesid,value_const) VALUES (, 13, 'Greek'
These constants exit in Languages files but not exist in file constants: