Hey Guys and dear experts

i got a stragen error after moving to my new host

:
Warning: include_once(./includes/constants.php) [function.include-once]: failed to open stream: No such file or directory in /home/mikechin/public_html/G2/Temp/GamesLk/global.php on line 131
Warning: include_once() [function.include]: Failed opening './includes/constants.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/mikechin/public_html/G2/Temp/GamesLk/global.php on line 131
Warning: include_once(./includes/functions.php) [function.include-once]: failed to open stream: No such file or directory in /home/mikechin/public_html/G2/Temp/GamesLk/global.php on line 132
Warning: include_once() [function.include]: Failed opening './includes/functions.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/mikechin/public_html/G2/Temp/GamesLk/global.php on line 132
Fatal error: Call to undefined function get_basefile() in /home/mikechin/public_html/G2/Temp/GamesLk/global.php on line 346
i think the ROOT_PATH is messed up

is thier a way to fix it Experts ?
Thanks in advance !