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 ('a2b57b96a4a27afb8cf19939024d5a2b', -1, 1711666854, 1711666854, '2cc0f7b9', 0, 0, 0)

Line : 172
File : sessions.php