Duplicate entry '0' for key 1, after installing oscmax

[ournature]

Hi there,
i'm wondering if somebody can help me on this,
i tried to install oscmax maybe 5 times, everytime installation seems to be ok, but, when i open the front store the first time it works and as soon as i refresh or i change page i always get this error:

1062 - Duplicate entry '0' for key 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('0', 'Guest', '8c7dffa471e2c8d55101b03fb57c9afe', '::1', '1167480838', '1167480838', '/shop/')

and the front store won't work anymore.
the admin side looks to work fine.

i reinstalled the whole thing few times but when i get to the catalog front page i always get this error.

any help??

[michael_s]

Remove the primary key or index on the whos online table. It should not have one.

Or remove the table and run this sql it insert the correct table format:

CREATE TABLE `whos_online` (                                         
               `customer_id` int(11) NOT NULL default '0',                        
               `full_name` varchar(64) collate latin1_general_ci NOT NULL,        
               `session_id` varchar(128) collate latin1_general_ci NOT NULL,      
               `ip_address` varchar(15) collate latin1_general_ci NOT NULL,       
               `time_entry` varchar(14) collate latin1_general_ci NOT NULL,       
               `time_last_click` varchar(14) collate latin1_general_ci NOT NULL,  
               `last_page_url` varchar(64) collate latin1_general_ci NOT NULL     
             ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci

[ournature]

Thank you so much Michael,
i deleted the table and run the query for creating the new one, it fixed the problem.
best,
Matteo