adding contacts to new group fails

rev2536M

php 4

mysql 4.1

1) create group

2) search for contacts

3) choose "all contacts" to add to group

4) click "Add to group":

error

Array
(
[callback] => Array
(
[0] => CRM_Core_Error
[1] => handle
)

[code] => -3
[message] => DB Error: constraint violation
[mode] => 16
[debug_info] => INSERT INTO civicrm_subscription_history (contact_id , group_id , date , method , status , tracking ) VALUES ( 0 , 1 , 20050811 , 'Admin' , 'Added' , NULL ) [nativecode=1216 ** Cannot add or update a child row: a foreign key constraint fails]
[type] => db_error
[user_info] => INSERT INTO civicrm_subscription_history (contact_id , group_id , date , method , status , tracking ) VALUES ( 0 , 1 , 20050811 , 'Admin' , 'Added' , NULL ) [nativecode=1216 ** Cannot add or update a child row: a foreign key constraint fails]
[to_string] => [db_error: message="DB Error: constraint violation" code=-3 mode=callback callback=CRM_Core_Error::handle prefix="" info="INSERT INTO civicrm_subscription_history (contact_id , group_id , date , method , status , tracking ) VALUES ( 0 , 1 , 20050811 , 'Admin' , 'Added' , NULL ) [nativecode=1216 ** Cannot add or update a child row: a foreign key constraint fails]"]
)