phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1406 Data too long for column 'session_admin' at row 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('53933d95ab8bad29c2b27d7a175fd3f5', -1, 1711710519, 1711710519, '03efef47', -2, 0, 0)

Line : 172
File : sessions.php