Help 503 error

[marshmallow]

I read a thread re: Search where it was solved.
But mine is different

After I install vbulletin, and reopen my url - it says 503 error

2011-09-28 05:56:17.539 [INFO] [121.54.11.228:52124-0#APVH_rebelnomore.x10.bz] File not found [/home/lemoirre/public_html/503.shtml]
2011-09-28 05:56:13.263 [INFO] [121.54.11.228:52123-0#APVH_rebelnomore.x10.bz] File not found [/home/lemoirre/public_html/503.shtml]
2011-09-28 05:56:12.588 [INFO] [HTAccess] Updating configuration from [/home/lemoirre/public_html/.htaccess]
2011-09-28 05:50:05.360 [INFO] [121.54.11.228:52011-0#APVH_rebelnomore.x10.bz] File not found [/home/lemoirre/public_html/503.shtml]
2011-09-28 05:50:03.765 [INFO] [HTAccess] Updating configuration from [/home/lemoirre/public_html/.htaccess]
2011-09-28 05:48:22.955 [INFO] [121.54.11.228:52001-0#APVH_rebelnomore.x10.bz] File not found [/home/lemoirre/public_html/503.shtml]
2011-09-28 05:48:04.369 [INFO] [121.54.11.228:51999-0#APVH_rebelnomore.x10.bz] File not found [/home/lemoirre/public_html/503.shtml]
2011-09-28 05:47:36.339 [INFO] [121.54.11.228:51996-0#APVH_rebelnomore.x10.bz] File not found [/home/lemoirre/public_html/503.shtml]
2011-09-28 05:47:35.696 [INFO] [HTAccess] Updating configuration from [/home/lemoirre/public_html/.htaccess]
2011-09-28 05:47:30.883 [INFO] [121.54.11.228:51994-1#APVH_rebelnomore.x10.bz] File not found [/home/lemoirre/public_html/503.shtml]
2011-09-28 05:45:40.653 [INFO] [HTAccess] Updating configuration from [/home/lemoirre/public_html/.htaccess]

i really dont have any knowledge re PHP
Please help

Link: rebelnomore.x10.bz/forum/

[webizen]

make sure you build matching php after install lsws. you can verify with command line:

php -v
/usr/local/lsws/fcgi-bin/lsphp5 -v

[mistwang]

You need to ask help from hosting company, those information is not enough for us to figure out what is the problem. It could be a PHP code problem like previous one.