[SOLVED] error notice when installing GJ 3.0 RC1 over GJ 2.7

Hi I started after backup with installing like described:
start with cb_groupjive plugin:
I get the error notice
Duplicate entry '269-6-1' for key 'user_id_group_status' SQL=ALTER TABLE `eumo_groupjive_users` ADD UNIQUE KEY `user_id_group_status` (`user_id`, `group`, `status`)
EDIT:
when I try to repair with tools,
same notice with
1062 Duplicate entry '269-6-1' for key 'user_id_group_status' SQL=ALTER TABLE `eumo_groupjive_users` ADD UNIQUE KEY `user_id_group_status` (`user_id`, `group`, `status`)

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but error persists.

EDIT 2
Table #__groupjive_users Index user_id_group_status does not exist
Table #__groupjive_invites Column message does not exist
Table #__groupjive_invites Column params does not exist
Table #__groupjive_invites Index user_id_group does not exist
Table #__groupjive_invites Index group_accepted_email_user does not exist
Table #__groupjive_notifications Column group does not exist
Table #__groupjive_notifications Index user_id_group does not exist

You somehow have a user that exists in the same group twice. You'll need to manually correct your database as duplicates can not exist in that table as the index is made unique for performance improvements.

ok, there were some duplicates, I don't know why, but after deleting all is ok. Thanks.