PDOException

Don't know exactly i got the error but now i can't edit my breadcrumb anymore.

    Notice: Undefined property: stdClass::$machine_name in path_breadcrumbs_ui_edit_page() (line 69 of D:\xampp\htdocs\spark\sites\all\modules\path_breadcrumbs\path_breadcrumbs_ui\path_breadcrumbs_ui.pages.inc).
    PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'name' cannot be null: INSERT INTO {ctools_object_cache} (sid, obj, name, data, updated) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4); Array ( [:db_insert_placeholder_0] => zWRThzDaTCGTv_9q2G1132GtZZ0YIyzLh4x84onVDkw [:db_insert_placeholder_1] => path_breadcrumbs [:db_insert_placeholder_2] => [:db_insert_placeholder_3] => O:8:"stdClass":2:{s:4:"prev";s:4:"Back";s:2:"op";s:4:"Back";} [:db_insert_placeholder_4] => 1369437668 ) in ctools_object_cache_set() (line 90 of D:\xampp\htdocs\spark\sites\all\modules\ctools\includes\object-cache.inc).