How to fix the bug, when categories are not opening

The problem begins during creating database, syntax error @lengthOrder '(', I predict that it is in " --get category tree" part, because then Categories are not opening:
Error page:
We're sorry, an internal error occurred.

Our supporting staff has been notified of this error and will address the issue shortly.

We apologize for the inconvenience.

Please try clicking your browsers 'back' button or try reloading the home page.

If you continue to receive this message, please try again in a little while.

Thank you for your patience.

Moreover, I can not see all products in admin, may be this problems connected, i dont know.
Please help me, how to fix it?

Hi,

May be you can find error in either logs in admin section.
or you can  mode="off" in custom error in web.config file of Web, so that you will find what is the actually problem.

<customErrors defaultRedirect="errorpage.htm" mode="RemoteOnly">
      <!-- We handle all 404 errors in "PageNotFound" method of "CommonController". But let's have it here anyway. -->
      <error statusCode="404" redirect="filenotfound.htm" />
    </customErrors>


change mode="off" to see the actual problem

http://newshop.aviaexpress.uz/Runtime%20Error.png
So, what to do next?

Go through the steps (in browser) that caused the error, and now the details would show in the browser.
Also, you should look in System > Log

The problem is during creating database, syntax error. So, there are only two problems:
- I can not open categories page
- Products in admin panel