Plugin Error

Errors in plugins? Retry to Update or Configure.

NoMethodError
undefined method `stripped_title' for nil:NilClass
(plugin/section_footer_mdn.rb):91:in `add_twitter'
(plugin/section_footer_mdn.rb):72:in `block (2 levels) in load_plugin'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/plugin.rb:184:in `call'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/plugin.rb:184:in `block in body_leave_proc'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/plugin.rb:183:in `each'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/plugin.rb:183:in `body_leave_proc'
(TDiary::Plugin#eval_src):168:in `block in eval_src'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/plugin.rb:106:in `eval'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/plugin.rb:106:in `block in eval_src'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/core_ext.rb:121:in `block in safe'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/core_ext.rb:123:in `call'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/core_ext.rb:123:in `safe'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/plugin.rb:105:in `eval_src'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/base.rb:66:in `do_eval_rhtml'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/base.rb:30:in `eval_rhtml'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/dispatcher/index_main.rb:43:in `run'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/dispatcher/index_main.rb:6:in `run'
/virtual/miyaken/public_html/magicdailynews.com/lib/tdiary/dispatcher.rb:26:in `dispatch_cgi'
index.rb:32:in `<main>'