Fatal error: Call to undefined function db_fetch_object()

I am getting this error below the footer on every page including the admin pages on my site :
Fatal error: Call to undefined function db_fetch_object() in /var/www/html/is/isocenter.org/sites/all/modules/shoutbox/shoutbox.module on line 129

My shoutbox settings are:
Display settings:
1. No of characteres 255
2. No of posts to show in a block 10
3. No of posts to show on page
4. Post newest shout at top - checked
5. Input form type: Text field
6. Time format : Time ago
7. Restrict general shouts : Yes
time settings:
1. Autorefresh: 0
2. Number of minutes for which anonymous users may edit or delete their own posts 20
3. Number of minutes for which registered users may edit or delete their own posts 20
4. Number of days after which shouts will be purged from the database 10

I have given permission to authenticated users and above to write in the shoutbox but everyone can view it.