erorr in ibProArcade

hi thanks i installed but i am errorr when want to playing games this eror

PHP Code:

Warning: Cannot modify header information - headers already sent by (output started at [path]/arcade/lang/lang_Arcade_fa.php:1) in [path]/arcade.php on line 2666

Warning: Cannot modify header information - headers already sent by (output started at [path]/arcade/lang/lang_Arcade_fa.php:1) in [path]/arcade.php on line 2667

Warning: Cannot modify header information - headers already sent by (output started at [path]/arcade/lang/lang_Arcade_fa.php:1) in [path]/arcade.php on line 2668

Warning: Cannot modify header information - headers already sent by (output started at [path]/arcade/lang/lang_Arcade_fa.php:1) in [path]/arcade.php on line 2669 

what mean eror please help me this eror and i want to add image to new game but i cannot please help me for this 2 problem thans bye

[MrZeropage]

what is "lang_Arcade_fa.php" ?

I only have "fr" included in the package... I am sure this language-file is the problem.

Switch to "english" and everything's fine

[GoodOmens]

Check for spaces after ?> in lang_Arcade_fa.php