Rails still trying to access table that has been renamed

Hi there, I’m quite new to ruby on rails. The version I’m running is
1.2. I have created my database schema using the rails migrate
facilities. I have many tables with plenty of columns. During the
course of creating tables I needed to make changes to existing tables,
like renaming a table to a different name. For example I renamed my
“People” table to “Persons” .

I have created a scaffolding controller to Persons. But for whatever
reason rails is still trying to access a table called People.

This is my error:
Mysql::Error: #42S02Table ‘md_development.people’ doesn’t exist: SHOW

How is that possible?

Thanks ahead,