에러해결점 부탁드립니다. 글쓰기 눌르면 에러가 ㅠㅠ

글쓰기 하면 이런에러가 나와요...
Warning: include_once(../lib/cheditor.lib.php) [function.include-once]: failed to open stream: 그런 파일이나 디렉토리가 없음 in /home/domain/pampamko.empas.tk/htdocs/skin/board/shop_mall/write.skin.php on line 3

Warning: include_once() [function.include]: Failed opening '../lib/cheditor.lib.php' for inclusion (include_path='.:') in /home/domain/pampamko.empas.tk/htdocs/skin/board/shop_mall/write.skin.php on line 3

Fatal error: Call to undefined function: cheditor1() in /home/domain/pampamko.empas.tk/htdocs/skin/board/shop_mall/write.skin.php on line 49