[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/auth/provider/godb.php on line 137: Undefined array key "PHPSESSID" [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4129: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3008) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4129: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3008) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4129: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3008) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4129: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3008) Invalid problem set - goproblems.com
It appears that the Yi Ch'ang-ho's Selected Life and Death Go Problems volumes aren't seen as a valid set. Which makes it annoying because the next/previous in set buttons aren't there.