Thesis 1.7 template problem

I have been using thesis 1.7 for a while now.But recently while i was trying to customize the theme,it broke down so i removed it completely and then installed it again.Every thing worked nice but every time i try to customize it by clicking the "custom file editor" button in my wp admin panel it shows this error

I have removed the theme many times and install it from other sources but still it's showing this problem.Can anyone help me with this or suggest me any theme to replace thesis?

Ya i have a solution for this:

You have to edit this admin.php file that can be found in this folder >> ./lib/admin/admin.php

Go and find a line that goes like "if (use_codepress()) add_action('admin..." and put // in front of it so it will look like "// if (use_codepress()) add_action('admin...'

And everything will be back to normal.