undefined method `size' for nil:NilClass
./vil.rb:1438:in `display_all_skill_pars'
(erb):394:in `erbres'
./util.rb:3244:in `erbres'
(erb):167:in `erbrun'
./util.rb:3238:in `erbrun'
./index.rb:414:in `handle_log_vid'
./index.rb:4403:in `run'
./index.rb:4427
index.cgi:3:in `require'
index.cgi:3