질문드려요

그누보드5 버전 : gnuboard5.3.1.2

에서

로그인 하는 login.php 을 페이지로 만들기 위해

bbs/login.php 에 있는 소스를 그대로 복사해서 붙여넣기 하면

아래와 같이 에러 문구가 뜨는데요

------ 에러 문구 -----------------------------------------

Warning: Cannot modify header information - headers already sent by (output started at /www/homepage.godohosting.com/bbs/login.php:13) in /www/homepage.godohosting.com/common.php on line 8

Warning: Cannot modify header information - headers already sent by (output started at /www/homepage.godohosting.com/bbs/login.php:13) in /www/homepage.godohosting.com/common.php on line 631

Warning: Cannot modify header information - headers already sent by (output started at /www/homepage.godohosting.com/bbs/login.php:13) in /www/homepage.godohosting.com/common.php on line 633

Warning: Cannot modify header information - headers already sent by (output started at /www/homepage.godohosting.com/bbs/login.php:13) in /www/homepage.godohosting.com/common.php on line 634

Warning: Cannot modify header information - headers already sent by (output started at /www/homepage.godohosting.com/bbs/login.php:13) in /www/homepage.godohosting.com/common.php on line 635

Warning: Cannot modify header information - headers already sent by (output started at /www/homepage.godohosting.com/bbs/login.php:13) in /www/homepage.godohosting.com/common.php on line 636

Warning: Cannot modify header information - headers already sent by (output started at /www/homepage.godohosting.com/bbs/login.php:13) in /www/homepage.godohosting.com/common.php on line 637

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이해를 돕기위해 화면캡쳐해서 올려요

바로 잡을려면 어떻게 해야 하는지 조언 좀 부탁드려요

항상 좋은 하루 되세요

안녕히 계세요