Error in AttendanceEvent.class.php

[tronx2100]

pleas change the code line 973 ff to prevent error
// automatic unserialisation based on match between property name and key value if (isset($array) && is_array($array) && !is_null($array)) { foreach ($array as $key => $value) { if (property_exists($this, $key)) { $this->{$key} = $value; } } }