probably you delete or uninstall the component, so when you try to access the banners you get an error. you can simply uninstall and reinstall Joomla.Which is easy but you know the circumstance right.
other way is reinstall the Joomla Banner Component. For that follow these instructions.
you need to have a clear idea about your ftp client or file manager and PhpMyAdmin.
download the your version of joomla from joomla.org
http://www.joomla.org/download.html for 1.5 versions
http://joomlacode.org/gf/project/joomla ... ge_id=5696 for 1.6 versions
Using FTP client or file manager Upload these 2 directories to your site
/administrator/components/com_banners/
/components/com_banners/
Then you need to create 3 insert queries in phpMyAdmin and run them individually. These queries will recreate the connection between the files you copied over via FTP and your Joomla extension manager – allowing you to Manage your Banners, Activate Banners and Manage your Banner Clients. If you don’t know how to create or run queries, you will have to ask your hosting company.
1 INSERT INTO `jos_components` VALUES (1, ‘Banners’, ”, 0, 0, ”, ‘Banner Management’,
‘com_banners’, 0, ‘js/ThemeOffice/component.png’, 0, ‘track_impressions=0\ntrack_clicks=0\ntag_prefix=\n\n’, 1);
2 INSERT INTO `jos_components` VALUES (2, ‘Banners’, ”, 0, 1, ‘option=com_banners’, ‘Active Banners’,
‘com_banners’, 1, ‘js/ThemeOffice/edit.png’, 0, ”, 1);
3 INSERT INTO `jos_components` VALUES (3, ‘Clients’, ”, 0, 1, ‘option=com_banners&c=client’, ‘Manage Clients’,
‘com_banners’, 2, ‘js/ThemeOffice/categories.png’, 0, ”, 1);
Now you should able to find the banner component. Regards!
