HELP pls - no contact app via browser - via console works!

hi again,
having been working on a rails-app for quite a time without experiencing
any trouble at all an INTERNAL SERVER ERROR 500 was presented on screen.
After that each and every attempt to connect to my app via browser is
commented like that :

undefined method `link_to’ for #<#Class:0x253345c:0x25333a8>
(‘link_to’ is just an example for a method … they’re all rejected …)

Interacting with the app via rails-console IS possible though. It’s
running under the hood …
The template-rendering-mechanism / helpers seems to be out of work …
so I have reinstalled everything twice now (the hivelogic-way [thanks
btw] ; ) No luck so far.

I’d be VERY pleased if someone outthere was able to help 8 )

ede

Full Trace
#{RAILS_ROOT}/app/views/prod/list.rhtml:1:in _run_rhtml_prod_list' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_view/base.rb:314:incompile_and_render_template’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_view/base.rb:290:in
render_template' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_view/base.rb:249:inrender_file’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/base.rb:699:in
render_file' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/base.rb:621:inrender_with_no_layout’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/layout.rb:243:in
render_without_benchmark' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/benchmarking.rb:53:inrender’
/usr/local/lib/ruby/1.8/benchmark.rb:293:in measure' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/benchmarking.rb:53:inrender’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/base.rb:911:in
perform_action_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:368:inperform_action_without_benchmark’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/benchmarking.rb:69:in
perform_action_without_rescue' /usr/local/lib/ruby/1.8/benchmark.rb:293:inmeasure’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/benchmarking.rb:69:in
perform_action_without_rescue' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/rescue.rb:82:inperform_action’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/base.rb:381:in
process_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:377:inprocess_without_session_management_support’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/session_management.rb:117:in
process' /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.2/lib/dispatcher.rb:38:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/rails-1.1.2/lib/fcgi_handler.rb:150:in
process_request' /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.2/lib/fcgi_handler.rb:54:inprocess!’
/usr/local/lib/ruby/site_ruby/1.8/fcgi.rb:600:in each_cgi' /usr/local/lib/ruby/site_ruby/1.8/fcgi.rb:597:ineach_cgi’
/usr/local/lib/ruby/gems/1.8/gems/rails-1.1.2/lib/fcgi_handler.rb:53:in
process!' /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.2/lib/fcgi_handler.rb:23:inprocess!’
/Users/ede/RoR/scribble/public/dispatch.fcgi:24