Permission denied - /home/nar/diary/2005/200502.td2 (Errno::EACCES)

./tdiary/defaultio.rb:127:in `initialize'
./tdiary/defaultio.rb:127:in `open'
./tdiary/defaultio.rb:127:in `transaction'
./tdiary.rb:1558:in `initialize'
index.rb:44:in `new'
index.rb:44