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 ('ffe8329afc68ec8bd401025e9d2d2b9d', -1, 1714090916, 1714090916, '12bfd8a3', 11, 0, 0)

Line : 172
File : sessions.php