I have download 1.6.

I delete 1.5.v (all files on server) end in admin SQL Query Executor: run uninstall.SQL file

I upload all files of 1.6.
in admin SQL Query Executor: run install.SQL file



End get message:

1146 Table 'kavanali_zencart.configuration_group' doesn't exist
in:
[SELECT @cgi := configuration_group_id FROM configuration_group WHERE configuration_group_title = 'Zen Lightbox';]


What to do?