Tasks list: Error loading Calendar (calendar-en.js)

Tasks list: Error loading Calendar (calendar-en.js)

Hello,

When I am on my personal task list, I am unable to use the datePicker popup... I get the following error in the JavaScript Console:

Calendar is not defined
http://netsimple.net:8090/vo/javascript/calendar-en.js Line 13

Calendar is not defined
http://netsimple.net:8090/vo/javascript/calendar-setup.js Line 62

Calendar is not defined
http://netsimple.net:8090/vo/javascript/calendarLang.js Line 17