Update error inserting an permission

Hi to all...

I installed the module, and try to configure the administration menu to let a role permission.

I configure the administration menu block in the right side, then a edit the menu and in the item edit page, I go down and find the option:

RESTRICT ITEM VISIBILITY

then I select:

Hide menu item from selected roles the role that I don't want to see the option, then when I click on save give me the following error:

user warning: Duplicate entry '559-1-menu item access' for key 'PRIMARY' query: INSERT INTO menu_item_access_role (mlid, rid, realm, grant_view, grant_update, grant_delete) values (559, 1, 'menu item access', 1, 0, 0) in /home/granmallvirtual/public_html/sites/all/modules/menu_access/menu_item_access.module on line 1216.
user warning: Duplicate entry '559-2-menu item access' for key 'PRIMARY' query: INSERT INTO menu_item_access_role (mlid, rid, realm, grant_view, grant_update, grant_delete) values (559, 2, 'menu item access', 1, 1, 1) in /home/granmallvirtual/public_html/sites/all/modules/menu_access/menu_item_access.module on line 1216.

And I can't correct, I ran cron, update, and dbmaintenance and I can't correct the error, do you have any idea?

Regards
Bruno Chávez