I change the language and I have a problem

hi
I was changed the languge of my arcade by copying a en_lang_file in Lang folder and the rename it to fa and then convert english phrase to my language. but now evrey thing is ok but when playing a game, when user click on any game to open the playing page some errors occured and in the top of page written but game is playable and ok.
I want to solve the prob because of 4 line error message. message is that:

Warning: Cannot modify header information - headers already sent by

4 line error like this:
Warning: Cannot modify header information - headers already sent by (output started at /home/bazinama/public_html/message/arcade/lang/lang_Arcade_fa.php:1) in /arcade.php on line 2655

Warning: Cannot modify header information - headers already sent by (output started at /home/bazinama/public_html/message/arcade/lang/lang_Arcade_fa.php:1) in /arcade.php on line 2656

Warning: Cannot modify header information - headers already sent by (output started at /home/bazinama/public_html/message/arcade/lang/lang_Arcade_fa.php:1) in /arcade.php on line 2657

Warning: Cannot modify header information - headers already sent by (output started at /home/bazinama/public_html/message/arcade/lang/lang_Arcade_fa.php:1) in /arcade.php on line 2658