Recently I came across a problem with Horde after a CPanel update. Address book was missing and when i tried to import a CSV backup of my address book horde kindly returned the following error:

DB Error: No such table

Well it was obvious that horde database was not set up correctly. The solution was very easy but unfortunately it took me quite a long time to find it. Here it is:

1. Login to your server through SSH as root user
2. Execute the command /usr/local/cpanel/bin/updatehorde --force
   
3. Watch for errors and return to horde