Timeline Chart

ERROR 8: Trying to access array offset on value of type null 0 Error occurred on line 1637 of file class_person.php in function _addName 1 called from line 471 of file class_gedcomrecord.php in function _getAllNames 2 called from line 1822 of file class_person.php in function getAllNames 3 called from line 603 of file class_gedcomrecord.php in function getFullName 4 called from line 285 of file timeline.php Notice: Trying to access array offset on value of type null in /home/pittfami/public_html/PhpGedView/includes/classes/class_person.php on line 1637 ‎(unknown)‎ ‎(unknown)‎

In most recent browsers you can click and drag the boxes around on the chart.