Hi,
Making changes directly to your database is quite risky especially if you're not used to working directly backend. I suggest you do the following in order:
1. Uninstall Community answers completely. This is to have a cleaner view of what menu is really not included in the Database.
2. Create a full backup of your site. Very important!
- You can use any Joomla backup software. I personally use Akeeba:
extensions.joomla.org/extensions/access-...security/backup/1606
3. Determine what database name and database prefix to work on.
- Go to Administrator > Global Configuration > Server, then list down the database name (name1_name2) and database table prefix (name1_name3) being used.
4. Log in to your phpMyAdmin then click on the name of the database name you listed on step 3 (name1_name2). You should be able to see the prefix (name3) on most of the table listing you find there.
5. Browse through the table names and look for the menu table (name3_menu). Click on it.
6. Show all menus. This step could be skipped if you're comfortable with moving from one page to another in looking for the menu you are about to delete. You can do this by changing the option at the bottom to something like this:
Show: 1000 row(s) starting from row # 0 in horizontal mode and repeat headers after 100 cells, then press enter key.
7. Look for community answers' menus by looking at the 'path' column for something with 'communityanswers':
communityanswers/users
communityanswers/categories
communityanswers/answerapproval
....
8. Just delete only one entry, then open a new window and login to your admin account and see if the menu is completely gone on the admin side of website. If this is the case, start deleting those entries with the 'communityanswers' carefully. Be sure you only delete those entries with 'communityanswers'.
9. If you don't see the menus anymore on your backend menus, reinstall community answers. This should bring it back to normal.
10. Just in case the above fails, most probably you did something wrong with the steps. Do a restore of your site to bring it back to where it was before and try again.
hth!