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 ('d3a6c0e5789f06197f9e528e9bfcfd0c', -1, 1714075838, 1714075838, '12d8ef2e', -8, 0, 0)

Line : 172
File : sessions.php