Upgrading to Omeka 1.1

I recently upgraded to version 1.1. When I tried to access the site I received this message.

Fatal error: Call to a member function run() on a non-object in /home/njgallardo/ashestorubble.dreamhosters.com/index.php on line 18

My site is ashestorubble.dreamhosters.com

I receive this error message when I try to access the login
(http://ashestorubble.dreamhosters.com/admin/users/login) page.

Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'Omeka_Context::getBootstrap' was given in /home/njgallardo/ashestorubble.dreamhosters.com/application/libraries/Omeka/Core.php on line 88

Fatal error: Call to a member function getResource() on a non-object in /home/njgallardo/ashestorubble.dreamhosters.com/admin/index.php on line 30

I have succeeded in upgrading Omeka to version 1.1

What was the problem, and how did you solve it?