500 Internal Server Error

Permission denied @ rb_sysopen - /home/www/earthlight.jp/diary/2014/201410.td2 (Errno::EACCES)

/home/www/earthlight.jp/htdocs/lib/tdiary/io/default.rb:176:in `initialize'
/home/www/earthlight.jp/htdocs/lib/tdiary/io/default.rb:176:in `open'
/home/www/earthlight.jp/htdocs/lib/tdiary/io/default.rb:176:in `rescue in transaction'
/home/www/earthlight.jp/htdocs/lib/tdiary/io/default.rb:173:in `transaction'
/home/www/earthlight.jp/htdocs/lib/tdiary/view.rb:148:in `load'
/home/www/earthlight.jp/htdocs/lib/tdiary/view.rb:125:in `initialize'
/home/www/earthlight.jp/htdocs/lib/tdiary/dispatcher/index_main.rb:86:in `new'
/home/www/earthlight.jp/htdocs/lib/tdiary/dispatcher/index_main.rb:86:in `create_tdiary'
/home/www/earthlight.jp/htdocs/lib/tdiary/dispatcher/index_main.rb:20:in `run'
/home/www/earthlight.jp/htdocs/lib/tdiary/dispatcher/index_main.rb:5:in `run'
/home/www/earthlight.jp/htdocs/lib/tdiary/dispatcher.rb:25:in `dispatch_cgi'
index.rb:32:in `<top (required)>'
/home/www/earthlight.jp/htdocs/index.fcgi:30:in `load'
/home/www/earthlight.jp/htdocs/index.fcgi:30:in `block (2 levels) in <main>'
/home/www/earthlight.jp/htdocs/index.fcgi:29:in `chdir'
/home/www/earthlight.jp/htdocs/index.fcgi:29:in `block in <main>'
/home/www/earthlight.jp/htdocs/misc/lib/fcgi_patch.rb:73:in `block in each_cgi'
/home/www/earthlight.jp/htdocs/misc/lib/fcgi_patch.rb:70:in `each'
/home/www/earthlight.jp/htdocs/misc/lib/fcgi_patch.rb:70:in `each_cgi'
/home/www/earthlight.jp/htdocs/index.fcgi:21:in `<main>'