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 ('84625888570a34b2b7ed1a1c3242b7a2', -1, 1713312019, 1713312019, '12bc3ddf', -2, 0, 0)

Line : 172
File : sessions.php