Issues when accessing the calendar

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Accessing the Calendar any site page.
2. Accessing the Permissions Tab in the Admin Control Panel.
3.

What is the expected output? What do you see instead?

No header pulls up when I try to access the Calendar any page on the site.
Instead I receive the following just above the Calendar:

', 2 => 'Feb', 3 => 'Mar', 4 => 'Apr', 5 => 'May', 6 => 'Jun', 7 => 'Jul',
8 => 'Aug', 9 => 'Sep', 10 => 'Oct', 11 => 'Nov', 12 => 'Dec', ),
'long_month'=> array( 1 => 'January', 2 => 'February', 3 => 'March', 4 =>
'April', 5 => 'May', 6 => 'June', 7 => 'July', 8 => 'August', 9 =>
'September', 10 => 'October', 11 => 'November', 12 => 'December', ), ),
'calendar_add_event' => 'Add Event', 'calendar_delete_event' => 'Delete
Event', 'calendar_delete_warn' => 'Once deleted the event cannot be
recovered', 'calendar_event_name' => 'Event Name', 'calendar_event_desc' =>
'Event Description', 'calendar_event_desc_exp' => 'Enter your event
description here, it may contain no more than 255 characters',
'calendar_event_end' => 'Event End', 'calendar_event_start' => 'Event
Start', 'calendar_upcoming_event' => 'Upcoming Events',
'calendar_post_name_error' => 'You must specify an event name when posting
a new event.', 'calendar_edit_name_error' => 'You must specify an event
name when editing an event.', 'calendar_post_time_error' => 'You must
specify a valid event start time when posting a new event.',
'calendar_edit_time_error' => 'You must specify a valid event start time
when editing an event.', 'calendar_post_date_error' => 'You must specify a
valid event start date when posting a new event.',
'calendar_edit_date_error' => 'You must specify a valid event start date
when editing an event.', 'calendar_post_desc_error' => 'You must include an
event description when posting a new event.', 'calendar_edit_desc_error' =>
'You must include an event description when editing an event.', ));
?>[phpBB Debug] PHP Notice: in file /includes/functions.php on line 3120:
Cannot modify header information - headers already sent by (output started
at /language/en/mods/calendar.php:98)
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 3122:
Cannot modify header information - headers already sent by (output started
at /language/en/mods/calendar.php:98)
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 3123:
Cannot modify header information - headers already sent by (output started
at /language/en/mods/calendar.php:98)
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 3124:
Cannot modify header information - headers already sent by (output started
at /language/en/mods/calendar.php:98)

Also, I receive the following when tring to access the permissions tab in
the admin control panel:

//CAL MOD // Adding new category for permisions
$lang['permission_cat']['calendar'] = 'Calendar Management'; // Adding the
permissions $lang = array_merge($lang, array( 'acl_u_view_event' =>
array('lang' => 'Can user view events', 'cat' => 'calendar'),
'acl_u_new_event' => array('lang' => 'Can user post a new event', 'cat' =>
'calendar'), 'acl_u_edit_event' => array('lang' => 'Can user edit their own
event', 'cat' => 'calendar'), 'acl_u_delete_event' => array('lang' => 'Can
user delete their oen event', 'cat' => 'calendar'), 'acl_m_edit_event' =>
array('lang' => 'Can edit other events', 'cat' => 'calendar'),
'acl_m_delete_event' => array('lang' => 'Can delete other events', 'cat' =>
'calendar'), 'acl_a_edit_event' => array('lang' => 'Can edit other events',
'cat' => 'calendar'), 'acl_a_delete_event' => array('lang' => 'Can delete
other events', 'cat' => 'calendar'), ));[phpBB Debug] PHP Notice: in file
/adm/index.php on line 149: Cannot modify header information - headers
already sent by (output started at /language/en/acp/permissions_phpbb.php:210)
[phpBB Debug] PHP Notice: in file /adm/index.php on line 151: Cannot modify
header information - headers already sent by (output started at
/language/en/acp/permissions_phpbb.php:210)
[phpBB Debug] PHP Notice: in file /adm/index.php on line 152: Cannot modify
header information - headers already sent by (output started at
/language/en/acp/permissions_phpbb.php:210)
[phpBB Debug] PHP Notice: in file /adm/index.php on line 153: Cannot modify
header information - headers already sent by (output started at
/language/en/acp/permissions_phpbb.php:210)

What version of the product are you using? On what operating system?

phpbb3 on Linux

Please provide any additional information below:

The test site producing the problem is http://www.i-sun.com/bb

Original issue reported on code.google.com by blanc...@gmail.com on 21 Jun 2008 at 6:13

[GoogleCodeExporter]

same problem here...

http://morasclass.com/phpBB/calendar.php

Original comment by the.g...@gmail.com on 27 Sep 2008 at 4:26

[GoogleCodeExporter]

same problem here, see my other issue which i fixed by removing some lines of 
code so
i could at least get into admin again and clean up the pages. Calendar looks 
great
and will do everything i want, but i need it to work.  Have phpbb3.0.6 with the
addonchat mod installed.

Gary

Original comment by kryon5@gmail.com on 1 Mar 2010 at 6:30