By dqian on
When I first installed Ubercart 2.x, everything works fine. Now, Somehow, Everytime I access to Ubercart store adminstration page, I get the following error.
warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'theme_admin_block_content' was given in \includes\theme.inc on line 617
Clicking on "Configuration" link returns the blank page. How can I fix this problem ? Please help.
