Many errors

In WP after posting
[phpBB Debug] PHP Notice: in file /includes/auth/auth_wpbb.php on line 14: Undefined index: i
[phpBB Debug] PHP Notice: in file /includes/auth/auth_wpbb.php on line 14: Undefined index: mode
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/main.php on line 267: Undefined index: forum
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/main.php on line 268: Undefined index: topic
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/main.php on line 269: Undefined index: msg
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 309: Undefined variable: message_parser
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 309: Trying to get property of non-object
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 309: Undefined variable: message_parser
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 309: Trying to get property of non-object
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 60: Undefined variable: mode
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 215: Undefined variable: mode
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 233: Undefined variable: mode
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 233: Undefined variable: mode
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 233: Undefined variable: mode
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 243: Undefined index: is_registered
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 251: Undefined index: is_registered
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 256: Undefined index: is_registered
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 256: Undefined index: is_registered
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 269: Undefined variable: mode
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 269: Undefined variable: mode
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/functions.php on line 282: Undefined variable: mode
[phpBB Debug] PHP Notice: in file Z:/home/site.ru/www/wp-content/plugins/phpbb-single-sign-on/wp2bb/main.php on line 341: Undefined index: forum
[phpBB Debug] PHP Warning: in file Z:/home/site.ru/www/wp-includes/pluggable.php on line 934: Cannot modify header information – headers already sent by (output started at /includes/functions.php:3773)

In phpBB
[phpBB Debug] PHP Notice: in file /common.php on line 100: Undefined variable: _SESSION
[phpBB Debug] PHP Notice: in file /includes/auth/auth_wpbb.php on line 14: Undefined index: i
[phpBB Debug] PHP Notice: in file /includes/auth/auth_wpbb.php on line 14: Undefined index: mode