Plugin Error

Errors in plugins? Retry to Update or Configure.

NoMethodError
undefined method `body_to_html' for nil:NilClass
(plugin/ogp.rb):16:in `ogp_description'
(plugin/ogp.rb):27:in `load_plugin'
./tdiary/plugin.rb:111:in `call'
./tdiary/plugin.rb:111:in `header_proc'
./tdiary/plugin.rb:110:in `each'
./tdiary/plugin.rb:110:in `header_proc'
(TDiary::Plugin#eval_src):4:in `eval_src'
./tdiary/plugin.rb:99:in `eval_src'
./tdiary/core_ext.rb:106:in `safe'
./tdiary/core_ext.rb:104:in `call'
./tdiary/core_ext.rb:104:in `safe'
./tdiary/plugin.rb:98:in `eval_src'
./tdiary/base.rb:66:in `do_eval_rhtml'
./tdiary/base.rb:30:in `eval_rhtml'
./tdiary/view.rb:140:in `eval_rhtml'
./tdiary/dispatcher/index_main.rb:43:in `run'
./tdiary/dispatcher/index_main.rb:6:in `run'
./tdiary/dispatcher.rb:21:in `dispatch_cgi'
index.rb:31