Fatal error: Call to a member function on a non-object

[anosh]

I recently uploaded the latest version to my site. But showing the following error messages.

1. On Home Page, Fatal error: Call to a member function on a non-object in home/newkeral/public_html/portal/lib/category.class.php on line 476

2. On New Listings Page, Fatal error: Call to a member function on a non-object in /home/newkeral/public_html/portal/lib/link.class.php on line 303

3. On Hot Listings Page, Fatal error: Call to a member function on a non-object in /home/newkeral/public_html/portal/lib/link.class.php on line 771

4. On Top Rated Page, Fatal error: Fatal error: Call to a member function on a non-object in /home/newkeral/public_html/portal/lib/link.class.php on line 901

I uploaded twice and still have the problem. Please suggest a solution.

[esm]

I'm not sure if it solve your problem, but there is a patch for 3.1 in the download center that you need to install.

[dody]

Do you upgrade or fresh installation? Does the error occur in all pages? Please be more specific.
Check again your database setting.

[anosh]

I created a new database and everything is working good. (before, i tried to install over the old database as a new installation)

Thanks dody, for ur fast response and for telling me to check the database

[dody]

It's fine. I just wondering why your upgrading failed. Many users already successfully upgrade the database.

When installing v.3.1, choose re-installation/upgrading, instead of new installation. This will upgrade the database structure from old v.3.0