When you try Parallels Sitebuilder plans to make available for Parallels H-Sphere customers using the page "E.Manager -> Sitebuilder -> Plans", you may get an internal error and the following message in the H-Sphere log file:
"ERROR: relation "sbplanid" does not exist"
1. Login to your Control Panel server as the cpanel user (su -l cpanel);
2. Login to your database management console to modify the hsphere database (psql hsphere).
3. Run the following SQL statement:
CREATE SEQUENCE sbplanid INCREMENT BY 1 MAXVALUE 2147483647 NO MINVALUE CACHE 1;
4. Log out from the database console and restart H-Sphere.