update fail! (3 replies)

HI
I am updating my piwik to 2.4.1. Now he said me:
1) Undefined index: datatable_row_limits in /home/mhd-01/www.linopolo.net/htdocs/analytics/core/Config.php on line 223
2)Undefined index: adding_segment_requires_access in /home/mhd-01/www.linopolo.net/htdocs/analytics/plugins/SegmentEditor/API.php on line 130

what I have to do?
thanks